python中bool函數

Python bool()函數 (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()函數用于根據標準真值測試過程將給定值轉換為布爾值(True或False)。 它接受一個值(如整數，列表，映射等)并將其轉換為布爾值。

Some of the examples:

一些例子：

• None – converts to False

  無-轉換為False

• False – converts to False

  False –轉換為False

• Zeros (0, 0.0, 0j) – converts to False

  零(0，0.0，0j)–轉換為False

• Empty sequences like, (), [], ' ' – converts to False

  空序列，如()，[]，''–轉換為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.

參數： value-要轉換為布爾值的值，它是可選參數，如果我們不傳遞任何參數，則返回False。

Return value: bool – a Boolean value

返回值： bool-布爾值

Example:

例：

Input:val = Falseprint("val = ", bool(val))val = True print("val = ", bool(val))val = 10print("val = ", bool(val))val = 0print("val = ", bool(val))Output:val = Falseval = Trueval = True val = False

Python code to convert value to the Boolean value

Python代碼將值轉換為布爾值

# python code to demonstrate example # of bool() functionval = 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

輸出量

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

翻譯自: https://www.includehelp.com/python/bool-function-with-example.aspx

python中bool函數

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