iOS编译错误:[__NSCFConstantString count]: unrecognized selector sent to instance 0x1ada02c
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这个错误的意思是此数据格式为string,但是要传的数据是是其他数据格式
我的情景:网络请求下来一数组字典,字典中的某一字段是数组,但是某一元素中的这个字段却是字符串,数据类型错误发生报错
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