python 示例

文件close()方法 (File close() Method)

close() method is an inbuilt method in Python, it is used to flush and close the IO object (file). If we close a closed file it has no effect.

close()方法是Python中的內置方法，用于刷新和關閉IO對象(文件)。 如果我們關閉已關閉的文件，則沒有任何效果。

Syntax:

句法：

file_object.close()

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of this method is <class 'NoneType'>, it returns nothing.

此方法的返回類型為<class'NoneType'> ，它什么也不返回。

Example 1:

范例1：

# Python File close() Method with Example# opening a file in write mode f = open("Hello.txt", "w") print("file opened...") print(f) # prints file details# closing the file f.close() print("file closed...")

Output

輸出量

file opened... <_io.TextIOWrapper name='Hello.txt' mode='w' encoding='UTF-8'> file closed...

Example 2:

范例2：

# Python File close() Method with Example# opening a file in write mode f = open("Hello.txt", "w") print("file opened...")# closing the file f.close()# closing a closed file f.close() print("file closed...")

Output

輸出量

file opened... file closed...

翻譯自: https://www.includehelp.com/python/file-close-method-with-example.aspx

python 示例

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