小程序如何获取code

wx.login({

success:function(res){

if(res.code){

wx.request({

url: "https://ruc.learning.stg.itknown.com/index/logi",

data:{code:res.code},

success:function(respon){

console.log(respon)

}

})

}else{

console.log('获取用户登录态失败：' + res.errMsg);

}

}

})