wx.config({
  debug: false,
  appId: xx,
  timestamp:res.data.timestamp ,
  nonceStr: res.data.nonceStr,
  signature: res.data.signature,
  jsApiList: ["openLocation"]
});
wx.ready(function () {
  wx.openLocation({
    longitude: parseFloat(params.longitude),
    latitude:parseFloat(params.latitude),
    name: params.name,
    address: params.address
  })
});
wx.error(function(res){
  console.log("err:"+res);
});