Python檔案的tell()
方法返回檔案中的檔案讀/寫指標的當前位置。
語法
以下是tell()
方法的語法 -
fileObject.tell()
引數
返回值
範例
假設’foo.txt
‘檔案中包含以下行 -
This is 1st line
This is 2nd line
This is 3rd line
This is 4th line
This is 5th line
以下範例顯示了tell()
方法的用法。
#!/usr/bin/python3
fo = open("foo.txt", "r+")
print ("Name of the file: ", fo.name)
line = fo.readline()
print ("Read Line: %s" % (line))
pos=fo.tell()
print ("current position : ",pos)
# Close opened file
fo.close()
執行上面程式碼後,將得到以下結果 -
Name of the file: foo.txt
Read Line: This is 1st line
Current Position: 18