公共返回：\[ {"code":-1, //登录失败"msg":"登录失败",//-1状态的返回信息"data": \[\] } \] 公共参数： \[ {"key":"\_acid","value":"0","description":"平台id：0"}, {"key":"r","value":"api/errands/xx/xx","description":"实际接口地址"}, {"key":"access\_token","value":"","description":"用户token：登录成功接口返回的access\_token，可为空"}, {"key":"\_version","value":"2.8.9","description":"版本号 用于判断是否需要更新"}, {"key":"\_platform","value":"ios","description":"平台：ios || android"}, {"key":"\_apk","value":"com.tencent.mobileqq","description":"安卓包名|ios包名", } \]