这是PHP后端代码 json_encode($return);这是打印出来的数据 {"error":0,"area_list":[{"area_id":"2","area_pid":"1","area_name":"\u5317\u4eac","area_sort":"0","first_pinyin":"b","is_open":"1","area_url":"bj","area_ip_desc":"\u5317\u4eac\u5e02","area_type":"2","is_hot":"1"}]}; 但是在前端为什么area_name 后面的\u5317\u4eac,能直接解析成中文呢?是个什么原理呢?
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