Python-based string manipulation

The following display code is implemented in Ipython3

s='i like Python'  

#首字母大写

Capitalize ()

1 in [3]: s='i like Python'23 in [4]: s.capitalize () 4 ' I like Python '

#全部转换大写, convert all lowercase

Upper () lower ()

In [6]: S.upper () out['I like PYTHON'

1 in [7]: S.lower ()2'i like Python'

#大写转换, convert the original uppercase to lowercase, lowercase to uppercase

In [8]: s.swapcase () out['I like PYTHON'

#单词首字母大写

In [9]: S.title () out['I like Python'

#居中

In [All]: S.center (#默认是空格Out) ['   i like    python'

in [+]: S.center ('~') #制定字符串Out ['~~~i like python~~~~ '

s = ' I like Pyhon '
#删除前后空格 (the default is to delete spaces, you can specify the front and back strings to delete)

Strip

in [+]: S.strip () out['i like  pyhon'

#删除后边空格

Rstrip

in [+]: S.rstrip () out['  i like  pyhon'

#删除左边空格

Lstrip

in [+]: S.lstrip () out['i like  pyhon  '

#公共方法

#获取字符串元素长度

Len

in [+]: Len (s) out[19]: 17

#查看元素是否以某字符串开头 (return to True,false),

StartsWith

EndsWith

In []: S.startswith (") out[]: True

In []: S.endswith (") out[]: True

#根据元素找索引号 (Returns-1 if not found)

Find

In [23°c]: S.find ('i') out[23]: 2

Index (Error if not found)

in [+]: S.index ('i') out[26]: 2

#统计 (returns 0 if the element is not counted)

Count

In []: S.count ('i') out[29]: 2

#替换

in [+]: s.replace ('like','love') out['    I love  pyhon  '

Python-based string manipulation