fix bug of json
fix bug of json

MonCoder/lordofpomelo,baongoccarrot/lordofpomelo,laiqiqi886/lordofpomelo,NetEase/lordofpomelo,keqingyuan/lordofpomelo,laiqiqi886/lordofpomelo,NetEase/lordofpomelo,baongoccarrot/lordofpomelo,NetEase/lordofpomelo,youyudehexie/lordofpomelo,youyudehexie/lordofpomelo,MonCoder/lordofpomelo,keqingyuan/lordofpomelo,baongoccarrot/lordofpomelo,laiqiqi886/lordofpomelo,keqingyuan/lordofpomelo,MonCoder/lordofpomelo