django.utils.datastructures.MultiValueDictKeyError
2018-10-16 18:00
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django.utils.datastructures.MultiValueDictKeyError: 'a'
源代码如下
print(request.GET['a'])
其实就是在 request.Post/Get 时，提取的 Key 不存在导致的
QueryDict.getitem(key)¶
Returns the value for the given key. If the key has more than one value, it returns the last value. Raises django.utils.datastructures.MultiValueDictKeyError if the key does not exist. (This is a subclass of Python’s standard KeyError, so you can stick to catching KeyError.)
解决办法：
1.使用QueryDict.get()方法 2.先判断Key是否存在，然后获取
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