python学习：字符串操作

1：双引号转义

<span style="font-size:18px;"><strong>print "he\"llo"</strong></span>

输出结果：he"llo

2：字符串的拼接

（1）可以用+号

<span style="font-size:18px;"><strong>print "hello" +" "+ "wolrd"</strong></span>

<span style="font-size:18px;"><strong>print "hello","world"</strong></span>

<span style="font-size:18px;"><strong>print "hello"*3</strong></span>

hello wolrd
hello world
hellohellohello

3：字符串长度

<span style="font-size:18px;"><strong>print len("hello")</strong></span>

4：类型转换：字符串转int

<span style="font-size:18px;"><strong>print int("111") + 1</strong></span>

5：类型转换：int转字符串

<span style="font-size:18px;"><strong>print "aaa" + str(1)</strong></span>

输出结果：aaa1

python学习：字符串操作

原文：http://blog.csdn.net/u013628152/article/details/43202069