Python 字典来算一个字符在一个段落出现的次数，出现了报错。实在没找到原因 QAQ

[U87]

def calculate(s): list = s.split() dict = {} for word in list: if word not in list: dict[word] = 1 else: dict[word] += 1 return dict

if name == 'main': words = "I Like python and you Like java too do you Like python or java" print calculate(words)

报错：Traceback (most recent call last): File "D:/KDR/gg.py", line 15, in <module> print calculate(words) File "D:/KDR/gg.py", line 10, in calculate dict[word] += 1 KeyError: 'I'
妈的居然报键值索引错误 2333

[whoami9894]

if 语句恒为 false
应该是
if word not in dict.keys()

[U87]

@whoami9894 谢谢我 sb 了