Python字符串方法|设置S3（strip，lstrip，rstrip，min，max，maketrans，translate，replace和expandtabs） _lstrip

以下集合介绍了一些字符串方法。
字符串方法第1部分
字符串方法第2部分
本文讨论了更多方法
1. strip()：-此方法用于删除所有开头和结尾其论点中提到的字符。
2. lstrip()：-此方法用于删除所有开头其论点中提到的字符。
3. rstrip()：-此方法用于删除所有尾随其论点中提到的字符。

# Python code to demonstrate working of # strip(), lstrip() and rstrip() str = "---srcmini---"# using strip() to delete all '-' print ( " String after stripping all '-' is : " , end = "") print ( str .strip( '-' ) )# using lstrip() to delete all trailing '-' print ( " String after stripping all leading '-' is : " , end = "") print ( str .lstrip( '-' ) )# using rstrip() to delete all leading '-' print ( " String after stripping all trailing '-' is : " , end = "") print ( str .rstrip( '-' ) )

输出如下：

String after stripping all '-' is : srcmini String after stripping all leading '-' is : srcmini--- String after stripping all trailing '-' is : ---srcmini

4.分钟(“ 字符串” )：-此函数返回最小值字母从字符串。
5. max(“ 字串” )：-此函数返回最大值字母从字符串。

# Python code to demonstrate working of # min() and max() str = "srcmini"# using min() to print the smallest character # prints 'e' print ( "The minimum value character is : " + min ( str ))# using max() to print the largest character # prints 's' print ( "The maximum value character is : " + max ( str ))

【Python字符串方法|设置S3（strip，lstrip，rstrip，min，max，maketrans，translate，replace和expandtabs）】输出如下：

The minimum value character is : e The maximum value character is : s

6. maketrans()：-它用来将字符串1的内容与字符串2映射带有相应的索引, 稍后将使用translate()进行翻译。
7. translate()：-这用来交换映射的字符串元素在maketrans()的帮助下。

# Python code to demonstrate working of # maketrans() and translate() from string import maketrans # for maketrans()str = "srcmini"str1 = "gfo" str2 = "abc"# using maktrans() to map elements of str2 with str1 mapped = maketrans( str1, str2 )# using translate() to translate using the mapping print "The string after translation using mapped elements is : " printstr .translate(mapped)

输出如下：

The string after translation using mapped elements is : aeeksbcraeeks

在上面的代码中, 使用转换功能在字符串中将” g” 替换为a, 将” f” 替换为b, 将” o” 替换为” c” 。
8.replace()：-此功能用于用新的子字符串替换子字符串在字符串中。该函数有3个参数。要替换的字符串, 将替换的新字符串以及表示替换操作限制的最大值(默认情况下为unlimited)。

# Python code to demonstrate working of # replace()str = "nerdsfornerds is for nerds"str1 = "nerds" str2 = "geeks"# using replace() to replace str2 with str1 in str # only changes 2 occurrences print ( "The string after replacing strings is : " , end = "") print ( str .replace( str1, str2, 2 ))

输出如下：

The string after replacing strings is : srcmini is for nerds

该方法是由
钦莫伊·伦卡(Chinmoy Lenka)
9. expandtabs()
：-它用来
用空格替换所有制表符(” \ t” )
或简单地使用给定的制表符大小来隔开, 这是可选的。
语法：string.tabsize(tabsize)
参数：指定一个制表符替换的字符数。默认情况下, 该函数的制表符大小为8。
返回值：一个字符串, 其中所有制表符都用空格替换。

# Python code to illustrate expandtabs() string = 'GEEKS\tFOR\tGEEKS'# No parameters, by default size is 8 print (string.expandtabs())# tab size taken as 2 print (string.expandtabs( 2 ))# tab size taken as 5 print (string.expandtabs( 5 ))

输出如下：