除了数值，，它可以表现在以下几个方面。包含在单引号或双引号：
>>> 'spam eggs' 'spam eggs' >>> 'doesn \' t' "doesn't" >>> "doesn't" "doesn't" >>> '"Yes," he said.' '"Yes," he said.' >>> " \" Yes, \" he said." '"Yes," he said.' >>> '"Isn \' t," she said.' '"Isn \' t," she said.'
字符串可以写多行。可以用\n表示，下一行是一个合乎逻辑的延续行,最后一个字符用反斜杠：
hello = "This is a rather long string containing \n\ several lines of text just as you would do in C. \n\ Note that whitespace at the beginning of the line is \ significant." print hello
字符串可以被包围在一对三重引号里面：
print """ Usage: thingy [OPTIONS] -h Display this usage message -H hostname Hostname to connect to """
字符串可以被连接在一起，用“+”运算符，重复*：
>>> word = 'Help' + 'A' >>> word 'HelpA' >>> '<' + word* 5 + '>' '<HelpAHelpAHelpAHelpAHelpA>'
两个彼此相邻的字符串文字自动连接：
>>> 'str' 'ing' # <- This is ok 'string' >>> 'str'.strip() + 'ing' # <- This is ok 'string' >>> 'str'.strip() 'ing' # <- This is invalid File "<stdin>", line 1, in ? 'str'.strip() 'ing' ^ SyntaxError: invalid syntax
注意：word字符串的内容是： “HelpA” 可以是下标（索引）和C一样，字符串的第一个字符下标（索引）0。可以指定的子串切片标志来表示：两个指数由冒号分隔。
>>> word[ 4] 'A' >>> word[ 0: 2] 'He' >>> word[ 2: 4] 'lp'
切片索引可以使用默认值;前一个索引默认为零，第二个索引默认被切片的字符串的大小。
>>> word[: 2] # The first two characters 'He' >>> word[ 2:] # Everything except the first two characters 'lpA'
和C字符串不同，Python字符串不能改变。想修改指定索引位置的字符串会导致错误：
>>> word[ 0] = 'x' Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: object doesn 't support item assignment >>> word[: 1] = 'Splat' Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: object doesn 't support slice assignment
然而，创建一个新的字符串是简单而有效的：
>>> 'x' + word[ 1:] 'xelpA' >>> 'Splat' + word[ 4] 'SplatA'
这里是一个有用的切片操作：[：]+[：]等于。
>>> word[: 2] + word[ 2:] 'HelpA' >>> word[: 3] + word[ 3:] 'HelpA'
指数可以是负数，从右边开始计数。例如：
>>> word[- 1] # The last character 'A' >>> word[- 2] # The last-but-one character 'p' >>> word[- 2:] # The last two characters 'pA' >>> word[:- 2] # Everything except the last two characters 'Hel'