代码：
fileReadObj = open("input.txt")
fileWriteObj = open("output.txt", ‘w‘)
fileLineText = fileReadObj.readline()
while (‘‘ != fileLineText):
string = fileLineText
fileWriteObj.write(string)
fileLineText = fileReadObj.readline()
fileReadObj.close()
fileWriteObj.close()
原文：http://www.cnblogs.com/kamil/p/5178101.html