统计文件中元音字母的数量

9-1 统计文件中元音字母的数量 (20 分)
已经建立文本文件abc.txt，编写一个程序，统计并输出文件中元音字母出现的次数。

输入格式:

数据见abc.txt
输出格式:

元音字母出现的?次
输入样例1:
It was the best of times it was the worst of times it was the age of wisdom it was the age of foolishness it was the epoch of belief it was the epoch of incredulity it was the season of Light it was the season of Darkness it was the spring of hope it was the winter of despair we had everything before us we had nothing before us we were all going direct to Heaven we were all going direct the other way in short the period was so far like the present period that some of its noisiest authorities insisted on its being received for good or for evil in the superlative degree of comparison only
输出样例1:

元音字母出现的191次

#!/usr/bin/env python
# coding:utf-8
 
 
def Quzh_Statistics_Vowel(strString):
    """
    统计元音字母——输入一个字符串，统计处其中元音字母的数量。
    """
    # 元音字母总个数
    num = 0
   
    for t in strString:
        # 避免忽视大写字母
        i = t.lower()
        # 统计出元音字母的总数量
        if i in ['a', 'e', 'i', 'o', 'u']:
            num += 1
       
    print "元音字母出现:%s" % num
 
 
Quzh_Statistics_Vowel('It was the best of times it was the worst of times it was the age of wisdom it was the age of foolishness it was the epoch of belief it was the epoch of incredulity it was the season of Light it was the season of Darkness it was the spring of hope it was the winter of despair we had everything before us we had nothing before us we were all going direct to Heaven we were all going direct the other way in short the period was so far like the present period that some of its noisiest authorities insisted on its being received for good or for evil in the superlative degree of comparison only')