统计一组数据的次数

#!/usr/bin/env python
# coding=utf-8


aa = open('C:/Users/12041/Desktop/text.txt','r',encoding='utf-8')
a = []
while True:
    line = aa.readline().strip()
    if line:
        a.append(line)
    else:
        break
b = list(set(a))
for i in b:
    print("%s has %s"%(i,a.count(i)))