我怎样才能使它更短，更好？

Question

我对在循环字符串赋值，我需要找出多少（A，E，I，O，U）输入。 我已经做了，但我觉得它太长了。我想缩短它，但我不知道如何。

这是我的代码：相反5变量计数和5不变的

x=input("enter the taxt that you need me to count how many (a,e,i,o,u) in it:") 

a=len(x) 

x1=0 

x2=0 

x3=0 

x4=0 

x5=0 

for i in range(a): 
    h=ord(x[i]) 

    if h == 105: 
     x1+=1 
    elif h == 111: 
     x2+=1 
    elif h == 97: 
     x3+=1 
    elif h == 117: 
     x4+=1 
    elif h == 101: 
     x5+=1 

print("There were",x3,"'a's") 
print("There were",x5,"'e's") 
print("There were",x1,"'i's") 
print("There were",x2,"'o's") 
print("There were",x4,"'u's") 

Answer 1

根据this question简单的方法：

x = input("Enter the text that you need me to count how many (a,e,i,o,u) are in it:") 

print("There were", x.count('a'), "'a's") 
print("There were", x.count('e'), "'e's") 
print("There were", x.count('i'), "'i's") 
print("There were", x.count('o'), "'o's") 
print("There were", x.count('u'), "'u's") 

Answer 2

比较使用字典：

h = {105: 0, 111: 0, 97: 0, 117: 0, 101: 0} 

或 - 更好 -

h = {'i': 0, 'o': 0, 'a': 0, 'u': 0, 'e': 0} 

所以完整的代码将

x = input("Enter the text that you need me to count how many (a,e,i,o,u) in it: ") 
h = {'i': 0, 'o': 0, 'a': 0, 'u': 0, 'e': 0} 

for i in x:    # there is no need to index characters in the string 
    if i in h: 
     h[i] += 1 

for char in h: 
    print("There were {} '{}'s".format(h[char], char)) 

Answer 3

您只需定义你在一个字符串关心（元音字母）字符的列表，然后使用dictionary comprehension。这段代码会打印出你想要什么，也让你与所有存储在字典中的值称为vowel_count：

vowels = 'aeiou' 

x=input("enter the taxt that you need me to count how many (a,e,i,o,u) in it:") 

vowel_count = {vowel: x.count(vowel) for vowel in vowels} 

for vowel in vowels: 
    print("There were ",vowel_count[vowel]," '", vowel, " 's")