tell() 方法返回文件中的文件的读/写指针的当前位置。
语法
以下是 tell() 方法的语法-
fileObject.tell()
参数
-
NA
返回值
此方法返回该文件内的文件的读/写指针的当前位置。
示例
下面的示例显示tell()方法的使用。
Assuming that 'foo.txt' file contains following text: This is 1st line This is 2nd line This is 3rd line This is 4th line This is 5th line
#!/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()
当我们运行上面的程序，会产生以下结果 -
Name of the file: foo.txt Read Line: This is 1st line Current Position: 18
