把字符串'aenabsascd'中的字符出现的次数统计出来,并以字典形式输出 方法一:
def count_str(str):
dic={}
for i in str:
dic[i]=str.count(i,0)
return dic print(count_str('aenabsascd'))
结果:
{'a': 3, 'e': 1, 'n': 1, 'b': 1, 's': 2, 'c': 1, 'd': 1}
方法二:
def count_str(string):
dic = {}
for i in string:
dic[i] = dic.get(i, 0) + 1
return dic print(count_str('aenabsascd'))
结果:
{'a': 3, 'e': 1, 'n': 1, 'b': 1, 's': 2, 'c': 1, 'd': 1}