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python中bool函数_bool()函数以及Python中的示例

bool,函数,python,以及,Python,示例
2025-04-01 16:27:51 时间

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python中bool函数

Python bool()函数 (Python bool() function)

bool() function is used to convert a given value to the Boolean value (True or False) as per the standard truth testing procedures. It accepts a value (like an integer, list, maps, etc) and converts it into a Boolean value.

bool()函数用于根据标准真值测试过程将给定值转换为布尔值(True或False)。 它接受一个值(如整数,列表,映射等)并将其转换为布尔值。

Some of the examples:

一些例子:

  • None – converts to False 无-转换为False
  • False – converts to False False –转换为False
  • Zeros (0, 0.0, 0j) – converts to False 零(0,0.0,0j)–转换为False
  • Empty sequences like, (), [], ‘ ‘ – converts to False 空序列,如(),[],”–转换为False

Syntax:

句法:

    bool([value])

Parameter: value – a value to be converted to the Boolean value, it’s an optional parameter, if we do not pass any parameter – it returns False.

参数: value-要转换为布尔值的值,它是可选参数,如果我们不传递任何参数,则返回False。

Return value: bool – a Boolean value

返回值: bool-布尔值

Example:

例:

    Input:
    val = False
    print("val = ", bool(val))
    val = True 
    print("val = ", bool(val))
    val = 10
    print("val = ", bool(val))
    val = 0
    print("val = ", bool(val))

    Output:
    val =  False
    val =  True
    val =  True 
    val =  False

Python code to convert value to the Boolean value

Python代码将值转换为布尔值

# python code to demonstrate example
# of bool() function

val = False
print("val = ", bool(val))

val = True 
print("val = ", bool(val))

val = 10
print("val = ", bool(val))

val = 0
print("val = ", bool(val))

val = 10.23
print("val = ", bool(val))

val = 0.0
print("val = ", bool(val))

val = "Hello"
print("val = ", bool(val))

val = []
print("val = ", bool(val))

Output

输出量

val =  False
val =  True
val =  True 
val =  False
val =  True 
val =  False
val =  True 
val =  False

翻译自: https://www.includehelp.com/python/bool-function-with-example.aspx

python中bool函数

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