>>> string = " python " >>> string.replace('python','java') #将'python'替换成'java' ' java ' >>> string.strip() #去掉了两边的空格(空字符应该都可以,默认的) 'python' >>> string.rstrip() #去掉右边的空字符 ' python' >>> string.lst
str.removeprefix(prefix, /) # 如果字符串以前缀字符串开头,返回string[len(prefix):]。否则,返回原始字符串的副本。 str.removesuffix(suffix, /) # 如果字符串以后缀字符串结尾,并且后缀非空,返回 string[:-len(suffix)]。 str.replace(old, new[, count]) # 返回字符串的副本,其中出现的所有子字符串o...
substring=string[4:] print(substring) # Print"around the world", 起始索引包含index(4)位置的字符 获取字符串的开头部分 如果你不使用起始索引,只使用停止索引,你可以获得字符串的开头部分。 例子: string = 'All around the world' #Stopatindex3 substring=string[:3] print(substring) # Print"All", ...
2. str.index(sub[, start[, end]])index() 方法与 find() 类似，也是查找子字符串 sub 的首次出现位置。但是，当子字符串不存在时，find() 返回 -1，而 index() 则抛出 ValueError 异常。同样支持指定查找范围。s = "Hello, world! This is a test string."# 查找 "world"pos = s.index("world...
a nice string representation of the object. | If the argument is a string, the return value is the same object. | | Method resolution order: | str | basestring | object | | Methods defined here: | | __add__(...) | x.__add__(y) <==> x+y | | __contains__(...) | x...
sequence类型都支持的通用操作: 成员检查:in、not in 连接:+ 复制:* 下标取值:s[i] 切片:s[i : j] 长度检查:len(s) 最小值:min(s) 最大值:max(s) 索引取值:s.index(i) 字符串统计:s.count(i) String Methods 判断类方法,通常返回一个布尔值:str.endswith(suffix[, start[, end]]):判断字符...
python的string模块 1.字符串属性方法操作: 1.>字符串格式输出对齐 1 2 3 4 5 6 7 8 9 10 11 >>>str="Python stRING" >>>printstr.center(20)#生成20个字符长度,str排中间 Python stRING >>>printstr.ljust(20)#生成20个字符长度,str左对齐 ...
The index of the first character of a string is 0. There is no separate character type. A character is simply a string of size 1. Here's how to get the character at a specific index.Python Copy word = 'Python' word[0] # Character in position 0.The output is:...
(1) s: string, 字符串; (2) d: decimal integer, 十进制数; (3) i: integer, 用法同%d; (4) u: unsigned integer, 无符号十进制数; (5) f: float, 浮点数(默认保留小数点后6位); (6) F: Float, 浮点数(默认保留小数点后6位); ...
Return S centered in a string of length width. Padding is done using the specified fill character (default is a space) 示例: >>> s = 'hello world' >>> s.center(30,'*') '***hello world***' ljust 返回长度为 width 的字符串,原字符串左对齐,后面填充fillchar 返回一个原字符串左对齐...