[已解决]函数的意义查询

QQ曹哥

def count(*param):
    length = len(param)
    for i in range(length):
        letters = 0
        space = 0
        digit = 0
        others = 0
        for each in param[i]:
            if each.isalpha():#
                letters += 1
            elif each.isdigit():#
                digit += 1
            elif each == ' ':
                space += 1
            else:
                others += 1
        print('第 %d 个字符串共有：英文字母 %d 个，数字 %d 个，空格 %d 个，其他字符 %d 个。' % (i+1, letters, digit, space, others))
            
count('I love fishc.com.', 'I love you, you love me.')

如果我想查询isalpha和isdigit这两个函数里面的内容和说明，需要在idle通过什么方式查询？？？

最佳答案

月排行榜 / 总排行榜

DT_Nelson

2019-7-21 16:14:55

1. >>> help(str.isalpha)
   
2. Help on method_descriptor:
   
3. 
   
4. isalpha(self, /)
   
5.     Return True if the string is an alphabetic string, False otherwise.
   
6.    
   
7.     A string is alphabetic if all characters in the string are alphabetic and there
   
8.     is at least one character in the string.
   
9. 
   
10. >>> help(str.isdigit)
    
11. Help on method_descriptor:
    
12. 
    
13. isdigit(self, /)
    
14.     Return True if the string is a digit string, False otherwise.
    
15.    
    
16.     A string is a digit string if all characters in the string are digits and there
    
17.     is at least one character in the string.
    

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跳转到最佳答案楼层

新手·ing

如果在idle里面，就是
help(函数名)
但是我建议百度

DT_Nelson

1. >>> help(str.isalpha)
   
2. Help on method_descriptor:
   
3. 
   
4. isalpha(self, /)
   
5.     Return True if the string is an alphabetic string, False otherwise.
   
6.    
   
7.     A string is alphabetic if all characters in the string are alphabetic and there
   
8.     is at least one character in the string.
   
9. 
   
10. >>> help(str.isdigit)
    
11. Help on method_descriptor:
    
12. 
    
13. isdigit(self, /)
    
14.     Return True if the string is a digit string, False otherwise.
    
15.    
    
16.     A string is a digit string if all characters in the string are digits and there
    
17.     is at least one character in the string.
    

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