Traceback (most recent call last):
File "C:/Users/pactera/PycharmProjects/study/number", line 10, in
print("list1[1:5]:",dict1['school']);
KeyError: 'school'
python中的字典（map）没有key时报错
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Traceback (most recent call last):
File "C:/Users/pactera/PycharmProjects/study/number", line 10, in
print("list1[1:5]:",dict1['school']);
KeyError: 'school'
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