【Python小函数】计算数组元素个数函数,自封装,内置的counter添加不了key的value为0的值
def counter_mine(ulist): result = {} for value in ulist: if result.get(value)==None: result[value]=1 else: result[value]+=1 return counter_mine if __name__ == '__main__': counter_mine(data)
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