然后使用名为 rstrip() 的内置函数删除字符串的最后一个字符,并将其存储在变量 trim_last_char 中。最后,借助变量trim_last_char打印结果。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 my_str="ROCK AND ROLLS"trim_last_char=my_str.rstrip('S')print("After remo
Python Code: # Function to remove all chars except given chardefremove_characters(str1,c):# List comprehension to keep only given charreturn''.join([elforelinstr1ifel==c])# Test stringtext="Python Exercises"# Print original stringprint("Original string")print(text)# Character to keepexcept...
The output shows that the first two occurrences of theacharacter were replaced by theAcharacter. Since the replacement was done only twice, the other occurrences ofaremain in the string. Remove Characters From a String Using thetranslate()Method The Python stringtranslate()method replaces each char...
In addition, we canaccess just a specific characteror aslice of charactersof a string. We might want to do this, for example, if we have a text that’s too long to display and we want to show just a portion of it. Or if we want to make an acronym by taking the first letter of...
'stRINg lEArn ' >>> >>> str.rjust(20) #str右对齐 ' stRINg lEArn' >>> >>> str.zfill(20) #str右对齐,左边填充0 '00000000stRINg lEArn' 大小写转换 >>> str='stRINg lEArn' >>> >>> str.upper() #转大写 'STRING LEARN' >>> ...
30. 不能输出汉字 (SyntaxError: Non-ASCII character in file) 你可能使用的是Python2,可以在源程序的第一行加上下面这句话。 # coding:utf-8 建议:如果是初学者,请使用Python3,避免这些不必要的麻烦。 31. 混淆==和is ==用于比较变量的值,is用于比较变量的id. a = 10 b = 10 # 错误的方式! a ...
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...
In the next example, we have a CSV string. replacing3.py #!/usr/bin/python data = "1,2,3,4,5,6,7,8,9,10" data2 = data.replace(',', '\n') print(data2) The replace each comma with a newline character. $ ./replacing3.py ...
Return S centered in a string of length width. Padding is done using the specified fill character (default is a space) """ return "" # 内容居中,width: 总长度; fillchar:空白处填充内容,默认无 # >>> a # 'Abel' # >>> b = a.center(20, '#') ...
Remove ads Conclusion In this tutorial, you’ve learned how to replace strings in Python. Along the way, you’ve gone from using the basic Python.replace()string method to using callbacks withre.sub()for absolute control. You’ve also explored some regex patterns and deconstructed them into ...