文件 readable() 方法
readable() 方法是 Python 中的內置方法,用於檢查文件流在 Python 中是否可讀。
用法:
file_object.readable()
參數:
- 它不接受任何參數。
返回值:
這個方法的返回類型是<class 'bool'>
, 如果文件流可讀則返回 True ,如果文件不可讀則返回 False 。
例:
# Python File readable() Method with Example
# creating a file
myfile1 = open("hello1.txt", "w")
# checking whethet the file stream is
# readable or not
print("myfile1.readable():", myfile1.readable())
# closing the file
myfile1.close()
# opening file in read mode
myfile1 = open("hello1.txt", "r")
# checking whethet the file stream is
# readable or not
print("myfile1.readable():", myfile1.readable())
# closing the file
myfile1.close()
輸出
myfile1.readable():False myfile1.readable():True
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