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1 string = "hello" 2 print(string[1])
运行结果如下:
e
1 string = "hello" 2 for s in string: 3 print(s)
运行结果如下:
h
e
l
l
o
1 lst = ['1', '3', 'a'] 2 string = "-".join(lst) 3 print(string)
运行结果如下:
1-3-a
1 string1 = 'hello' 2 string2 = 'python' 3 string3 = string1 + string2 4 print(string3)
运行结果如下:
hellopython
1 string = "i'am a super student" 2 newstr = string.split('s', 1) 3 print(newstr)
运行结果如下:
["i'am a ", 'uper student']
1 string = "i'am a super student" 2 newstr = string.rsplit('s', 1) 3 print(newstr)
运行结果如下:
["i'am a super ", 'tudent']
1 string = "ab c\n\nde fg\rkl\r\nz" 2 newstr = string.splitlines() 3 print(newstr)
运行结果如下:
['ab c', '', 'de fg', 'kl', 'z']
1 string = "ab c\n\nde fg\rkl\r\nz" 2 newstr = string.splitlines(true) 3 print(newstr)
运行结果如下:
['ab c\n', '\n', 'de fg\r', 'kl\r\n', 'z']
1 string = "i'm a super student" 2 newtuple = string.partition('s') 3 print(newtuple)
运行结果如下:
("i'm a ", 's', 'uper student')
1 string = "i'm a super student" 2 newstr = string.upper() 3 print(newstr)
运行结果如下:
i'm a super student
1 string = "a b" 2 newstr = string.swapcase() 3 print(newstr)
运行结果如下:
a b
1 string = "hello python" 2 newstr = string.title() 3 print(newstr)
运行结果如下:
hello python
1 string = "hello python" 2 newstr = string.capitalize() 3 print(newstr)
运行结果如下:
hello python
1 string = "abc" 2 newstr = string.center(10, "*") 3 print(newstr)
运行结果如下:
***abc****
1 string = "abc" 2 newstr = string.zfill(10) 3 print(newstr)
运行结果如下:
0000000abc
1 string = "abc" 2 newstr = string.ljust(10, "*") 3 print(newstr)
运行结果如下:
abc*******
1 string = "abc" 2 newstr = string.rjust(10, "*") 3 print(newstr)
运行结果如下:
*******abc
1 string = "aabbcc" 2 newstr = string.replace('b', '*' ) 3 print(newstr)
运行结果如下:
aa**cc
1 string = "\r \n \t hello python \n \t" 2 newstr = string.strip() 3 print(newstr)
运行结果如下:
hello python
1 string = "i am very very very sorry" 2 newstr = string.strip('iay') 3 print(newstr)
运行结果如下:
am very very very sorr
1 string = "i am very very very sorry" 2 newstr = string.find('very') 3 print(newstr)
运行结果如下:
5
1 string = "i am very very very sorry" 2 newstr = string.count('very') 3 print(newstr)
运行结果如下:
3
1 string = "i am very very very sorry" 2 newstr = string.startswith('i') 3 print(newstr)
运行结果如下:
true
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