Python3 File tell () method
Outline
tell () method returns the file's current position, that is the current position of the file pointer.
grammar
tell () method has the following syntax:
fileObject.tell(offset[, whence])
parameter
no
return value
Returns the current location of the file.
Examples
The following example demonstrates the use tell () method:
W3big.txt content file as follows:
1:www.w3big.com 2:www.w3big.com 3:www.w3big.com 4:www.w3big.com 5:www.w3big.com
Loop reads the contents of the file:
#!/usr/bin/python3 # 打开文件 fo = open("w3big.txt", "r+") print ("文件名为: ", fo.name) line = fo.readline() print ("读取的数据为: %s" % (line)) # 获取当前文件位置 pos = fo.tell() print ("当前位置: %d" % (pos)) # 关闭文件 fo.close()
The above example output is:
文件名为: w3big.txt 读取的数据为: 1:www.w3big.com 当前位置: 17