几个字符串处理方法:

body = raw_input("请输入一个字符串:")

print "total charters is %d" %len(body)

lines = body.splitlines()

print "total lines is %d" % len(lines)

words = body.split()

print "total words is %d" % len(words)

此时直接键入words 或lines回车得到的是你输入的字符串,两个一样,不过用len计算后输出就有不同的值