tell()方法返回的文件內(nèi)的文件讀/寫指針的當(dāng)前位置。
語(yǔ)法
以下是tell()方法的語(yǔ)法：
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fileObject.tell() |
參數(shù)
- NA
返回值
此方法返回該文件中讀出的文件/寫指針的當(dāng)前位置。
例子
下面的例子顯示了tell()方法的使用。
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#!/usr/bin/python# Open a filefo = open("foo.txt", "rw+")print "Name of the file: ", fo.name# Assuming file has following 5 lines# This is 1st line# This is 2nd line# This is 3rd line# This is 4th line# This is 5th lineline = fo.readline()print "Read Line: %s" % (line)# Get the current position of the file.pos = fo.tell()print "Current Position: %d" % (pos)# Close opend filefo.close() |
當(dāng)我們運(yùn)行上面的程序，它會(huì)產(chǎn)生以下結(jié)果：
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Name of the file: foo.txtRead Line: This is 1st lineCurrent Position: 18 |
