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.. DO NOT EDIT THIS FILE!!!
.. Generated automatically from Godot engine sources.
.. Generator: https://github.com/godotengine/godot/tree/master/doc/tools/make_rst.py.
.. XML source: https://github.com/godotengine/godot/tree/master/doc/classes/float.xml.
.. _class_float:
float
=====
浮点数内置类型。
.. rst-class:: classref-introduction-group
描述
----
**float** 内置类型是 64 位双精度浮点数，相当于 C++ 中的 ``double``\ 。这个类型有 14 个可靠的十进制小数位精度。\ **float** 的最大值约为 ``1.79769e308``\ ，最小值约为 ``-1.79769e308``\ 。
不过引擎中的许多方法和属性默认使用的都是 32 位单精度浮点数，相当于 C++ 中的 ``float``\ ，有 6 位可靠的十进制小数位精度。Godot 在 :ref:`Vector2<class_Vector2>` 和 :ref:`Vector3<class_Vector3>` 等数据结构中默认使用 32 位浮点数，但如果 Godot 编译时使用了 ``precision=double`` 选项，就会改为 64 位的 double。
使用 **float** 类型进行的数学运算无法保证精确与稳定，经常会产生较小的误差。你通常应该使用 :ref:`@GlobalScope.is_equal_approx()<class_@GlobalScope_method_is_equal_approx>` 和 :ref:`@GlobalScope.is_zero_approx()<class_@GlobalScope_method_is_zero_approx>` 方法来比较 **float** 值是否相等，不应该用 ``==``\ 。
.. rst-class:: classref-introduction-group
教程
----
- `维基百科：双精度浮点数格式 <https://en.wikipedia.org/wiki/Double-precision_floating-point_format>`__
- `维基百科：单精度浮点数格式 <https://en.wikipedia.org/wiki/Single-precision_floating-point_format>`__
.. rst-class:: classref-reftable-group
构造函数
--------
.. table::
:widths: auto
+---------------------------+---------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`float<class_float_constructor_float>`\ (\ ) |
+---------------------------+---------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`float<class_float_constructor_float>`\ (\ from\: :ref:`float<class_float>`\ ) |
+---------------------------+---------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`float<class_float_constructor_float>`\ (\ from\: :ref:`String<class_String>`\ ) |
+---------------------------+---------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`float<class_float_constructor_float>`\ (\ from\: :ref:`bool<class_bool>`\ ) |
+---------------------------+---------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`float<class_float_constructor_float>`\ (\ from\: :ref:`int<class_int>`\ ) |
+---------------------------+---------------------------------------------------------------------------------------+
.. rst-class:: classref-reftable-group
运算符
------
.. table::
:widths: auto
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator !=<class_float_operator_neq_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator !=<class_float_operator_neq_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Color<class_Color>` | :ref:`operator *<class_float_operator_mul_Color>`\ (\ right\: :ref:`Color<class_Color>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Quaternion<class_Quaternion>` | :ref:`operator *<class_float_operator_mul_Quaternion>`\ (\ right\: :ref:`Quaternion<class_Quaternion>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Vector2<class_Vector2>` | :ref:`operator *<class_float_operator_mul_Vector2>`\ (\ right\: :ref:`Vector2<class_Vector2>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Vector2<class_Vector2>` | :ref:`operator *<class_float_operator_mul_Vector2i>`\ (\ right\: :ref:`Vector2i<class_Vector2i>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Vector3<class_Vector3>` | :ref:`operator *<class_float_operator_mul_Vector3>`\ (\ right\: :ref:`Vector3<class_Vector3>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Vector3<class_Vector3>` | :ref:`operator *<class_float_operator_mul_Vector3i>`\ (\ right\: :ref:`Vector3i<class_Vector3i>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Vector4<class_Vector4>` | :ref:`operator *<class_float_operator_mul_Vector4>`\ (\ right\: :ref:`Vector4<class_Vector4>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`Vector4<class_Vector4>` | :ref:`operator *<class_float_operator_mul_Vector4i>`\ (\ right\: :ref:`Vector4i<class_Vector4i>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator *<class_float_operator_mul_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator *<class_float_operator_mul_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator **<class_float_operator_pow_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator **<class_float_operator_pow_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator +<class_float_operator_sum_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator +<class_float_operator_sum_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator -<class_float_operator_dif_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator -<class_float_operator_dif_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator /<class_float_operator_div_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator /<class_float_operator_div_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator \<<class_float_operator_lt_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator \<<class_float_operator_lt_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator \<=<class_float_operator_lte_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator \<=<class_float_operator_lte_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator ==<class_float_operator_eq_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator ==<class_float_operator_eq_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator ><class_float_operator_gt_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator ><class_float_operator_gt_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator >=<class_float_operator_gte_float>`\ (\ right\: :ref:`float<class_float>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`operator >=<class_float_operator_gte_int>`\ (\ right\: :ref:`int<class_int>`\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator unary+<class_float_operator_unplus>`\ (\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`operator unary-<class_float_operator_unminus>`\ (\ ) |
+-------------------------------------+-----------------------------------------------------------------------------------------------------------+
.. rst-class:: classref-section-separator
----
.. rst-class:: classref-descriptions-group
构造函数说明
------------
.. _class_float_constructor_float:
.. rst-class:: classref-constructor
:ref:`float<class_float>` **float**\ (\ ) :ref:`🔗<class_float_constructor_float>`
构造默认初始化的 **float**\ ，会被设为 ``0.0``\ 。
.. rst-class:: classref-item-separator
----
.. rst-class:: classref-constructor
:ref:`float<class_float>` **float**\ (\ from\: :ref:`float<class_float>`\ )
构造给定 **float** 的副本。
.. rst-class:: classref-item-separator
----
.. rst-class:: classref-constructor
:ref:`float<class_float>` **float**\ (\ from\: :ref:`String<class_String>`\ )
将 :ref:`String<class_String>` 转换为 **float**\ ，遵循与 :ref:`String.to_float()<class_String_method_to_float>` 相同的规则。
.. rst-class:: classref-item-separator
----
.. rst-class:: classref-constructor
:ref:`float<class_float>` **float**\ (\ from\: :ref:`bool<class_bool>`\ )
将 :ref:`bool<class_bool>` 值转换为浮点值，\ ``float(true)`` 将等于 1.0，\ ``float(false)`` 将等于 0.0。
.. rst-class:: classref-item-separator
----
.. rst-class:: classref-constructor
:ref:`float<class_float>` **float**\ (\ from\: :ref:`int<class_int>`\ )
将 :ref:`int<class_int>` 值转换为浮点值，\ ``float(1)`` 将等于 ``1.0``\ 。
.. rst-class:: classref-section-separator
----
.. rst-class:: classref-descriptions-group
运算符说明
----------
.. _class_float_operator_neq_float:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator !=**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_neq_float>`
如果两个浮点数彼此不同，则返回 ``true``\ 。
\ **注意：**\ :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` 的行为与其他数字不同。因此，如果包含 NaN，则这个方法的结果可能不准确。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_neq_int:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator !=**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_neq_int>`
如果整数的值与浮点数不同，则返回 ``true``\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Color:
.. rst-class:: classref-operator
:ref:`Color<class_Color>` **operator ***\ (\ right\: :ref:`Color<class_Color>`\ ) :ref:`🔗<class_float_operator_mul_Color>`
将该 :ref:`Color<class_Color>` 的每个分量乘以给定的 **float**\ ，包括 Alpha。
::
print(1.5 * Color(0.5, 0.5, 0.5)) # 输出 (0.75, 0.75, 0.75, 1.5)
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Quaternion:
.. rst-class:: classref-operator
:ref:`Quaternion<class_Quaternion>` **operator ***\ (\ right\: :ref:`Quaternion<class_Quaternion>`\ ) :ref:`🔗<class_float_operator_mul_Quaternion>`
将该 :ref:`Quaternion<class_Quaternion>` 的每个分量乘以给定的 **float**\ 。此操作本身没有意义，但可以用作更大表达式的一部分。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Vector2:
.. rst-class:: classref-operator
:ref:`Vector2<class_Vector2>` **operator ***\ (\ right\: :ref:`Vector2<class_Vector2>`\ ) :ref:`🔗<class_float_operator_mul_Vector2>`
将该 :ref:`Vector2<class_Vector2>` 的每个分量乘以给定的 **float**\ 。
::
print(2.5 * Vector2(1, 3)) # 输出 (2.5, 7.5)
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Vector2i:
.. rst-class:: classref-operator
:ref:`Vector2<class_Vector2>` **operator ***\ (\ right\: :ref:`Vector2i<class_Vector2i>`\ ) :ref:`🔗<class_float_operator_mul_Vector2i>`
将该 :ref:`Vector2i<class_Vector2i>` 的每个分量乘以给定的 **float**\ 。返回的是 :ref:`Vector2<class_Vector2>`\ 。
::
print(0.9 * Vector2i(10, 15)) # 输出 (9.0, 13.5)
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Vector3:
.. rst-class:: classref-operator
:ref:`Vector3<class_Vector3>` **operator ***\ (\ right\: :ref:`Vector3<class_Vector3>`\ ) :ref:`🔗<class_float_operator_mul_Vector3>`
将该 :ref:`Vector3<class_Vector3>` 的每个分量乘以给定的 **float**\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Vector3i:
.. rst-class:: classref-operator
:ref:`Vector3<class_Vector3>` **operator ***\ (\ right\: :ref:`Vector3i<class_Vector3i>`\ ) :ref:`🔗<class_float_operator_mul_Vector3i>`
将该 :ref:`Vector3i<class_Vector3i>` 的每个分量乘以给定的 **float**\ 。返回的是 :ref:`Vector3<class_Vector3>`\ 。
::
print(0.9 * Vector3i(10, 15, 20)) # 输出 (9.0, 13.5, 18.0)
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Vector4:
.. rst-class:: classref-operator
:ref:`Vector4<class_Vector4>` **operator ***\ (\ right\: :ref:`Vector4<class_Vector4>`\ ) :ref:`🔗<class_float_operator_mul_Vector4>`
将该 :ref:`Vector4<class_Vector4>` 的每个分量乘以给定的 **float**\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_Vector4i:
.. rst-class:: classref-operator
:ref:`Vector4<class_Vector4>` **operator ***\ (\ right\: :ref:`Vector4i<class_Vector4i>`\ ) :ref:`🔗<class_float_operator_mul_Vector4i>`
将该 :ref:`Vector4i<class_Vector4i>` 的每个分量乘以给定的 **float**\ 。返回的是 :ref:`Vector4<class_Vector4>`\ 。
::
print(0.9 * Vector4i(10, 15, 20, -10))# 输出 (9.0, 13.5, 18.0, -9.0)
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_float:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator ***\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_mul_float>`
将两个 **float** 相乘。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_mul_int:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator ***\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_mul_int>`
将 **float** 和 :ref:`int<class_int>` 相乘。结果是 **float**\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_pow_float:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator ****\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_pow_float>`
将 **float** 提升到 **float** 次幂。
::
print(39.0625**0.25) # 2.5
.. rst-class:: classref-item-separator
----
.. _class_float_operator_pow_int:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator ****\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_pow_int>`
将 **float** 提升到 :ref:`int<class_int>` 次幂。结果为 **float**\ 。
::
print(0.9**3) # 0.729
.. rst-class:: classref-item-separator
----
.. _class_float_operator_sum_float:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator +**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_sum_float>`
将两个浮点数相加。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_sum_int:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator +**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_sum_int>`
将 **float** 加上 :ref:`int<class_int>`\ 。结果为 **float**\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_dif_float:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator -**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_dif_float>`
将一个浮点数减去另一个浮点数。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_dif_int:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator -**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_dif_int>`
将 **float** 减去 :ref:`int<class_int>`\ 。结果为 **float**\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_div_float:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator /**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_div_float>`
将两个浮点数相除。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_div_int:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator /**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_div_int>`
将 **float** 除以 :ref:`int<class_int>`\ 。结果是 **float**\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_lt_float:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator <**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_lt_float>`
如果左侧的浮点数小于右侧的，则返回 ``true``\ 。
\ **注意：**\ :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` 的行为与其他数字不同。因此，如果包含 NaN，则这个方法的结果可能不准确。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_lt_int:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator <**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_lt_int>`
如果该 **float** 小于给定的 :ref:`int<class_int>`\ ，则返回 ``true``\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_lte_float:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator <=**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_lte_float>`
如果左侧的浮点数小于等于右侧的，则返回 ``true``\ 。
\ **注意：**\ :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` 的行为与其他数字不同。因此，如果包含 NaN，则这个方法的结果可能不准确。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_lte_int:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator <=**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_lte_int>`
如果该 **float** 小于等于给定的 :ref:`int<class_int>`\ ，则返回 ``true``\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_eq_float:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator ==**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_eq_float>`
如果两个浮点数完全相等，则返回 ``true``\ 。
\ **注意：**\ 由于浮点精度误差，考虑改用更可靠的 :ref:`@GlobalScope.is_equal_approx()<class_@GlobalScope_method_is_equal_approx>` 或 :ref:`@GlobalScope.is_zero_approx()<class_@GlobalScope_method_is_zero_approx>`\ 。
\ **注意：**\ :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` 的行为与其他数字不同。因此，如果包含 NaN，则这个方法的结果可能不准确。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_eq_int:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator ==**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_eq_int>`
如果该 **float** 等于给定的 :ref:`int<class_int>`\ ，则返回 ``true``\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_gt_float:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator >**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_gt_float>`
如果左侧的浮点数大于右侧的，则返回 ``true``\ 。
\ **注意：**\ :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` 的行为与其他数字不同。因此，如果包含 NaN，则这个方法的结果可能不准确。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_gt_int:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator >**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_gt_int>`
如果该 **float** 大于给定的 :ref:`int<class_int>`\ ，则返回 ``true``\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_gte_float:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator >=**\ (\ right\: :ref:`float<class_float>`\ ) :ref:`🔗<class_float_operator_gte_float>`
如果左侧的浮点数大于等于右侧的，则返回 ``true``\ 。
\ **注意：**\ :ref:`@GDScript.NAN<class_@GDScript_constant_NAN>` 的行为与其他数字不同。因此，如果包含 NaN，则这个方法的结果可能不准确。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_gte_int:
.. rst-class:: classref-operator
:ref:`bool<class_bool>` **operator >=**\ (\ right\: :ref:`int<class_int>`\ ) :ref:`🔗<class_float_operator_gte_int>`
如果该 **float** 大于等于给定的 :ref:`int<class_int>`\ ，则返回 ``true``\ 。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_unplus:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator unary+**\ (\ ) :ref:`🔗<class_float_operator_unplus>`
返回与 ``+`` 不存在时相同的值。单目 ``+`` 没有作用，但有时可以使你的代码更具可读性。
.. rst-class:: classref-item-separator
----
.. _class_float_operator_unminus:
.. rst-class:: classref-operator
:ref:`float<class_float>` **operator unary-**\ (\ ) :ref:`🔗<class_float_operator_unminus>`
返回该 **float** 的相反数。如果为正数，则将该数变为负数。如果为负数，则将该数变为正数。对于浮点数，数字零既可以是正数，也可以是负数。
.. |virtual| replace:: :abbr:`virtual (本方法通常需要用户覆盖才能生效。)`
.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
.. |const| replace:: :abbr:`const (本方法无副作用，不会修改该实例的任何成员变量。)`
.. |vararg| replace:: :abbr:`vararg (本方法除了能接受在此处描述的参数外，还能够继续接受任意数量的参数。)`
.. |constructor| replace:: :abbr:`constructor (本方法用于构造某个类型。)`
.. |static| replace:: :abbr:`static (调用本方法无需实例，可直接使用类名进行调用。)`
.. |operator| replace:: :abbr:`operator (本方法描述的是使用本类型作为左操作数的有效运算符。)`
.. |bitfield| replace:: :abbr:`BitField (这个值是由下列位标志构成位掩码的整数。)`
.. |void| replace:: :abbr:`void (无返回值。)`
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