test:function(){

var session=null;

wx.request({

url: __PATH__ + 'pages/login/login.php',

header: {

"Content-Type": "application/x-www-form-urlencoded;charset=utf-8"

},

method: 'POST',

data: { sessionkey: 'asdsdsdsdsdsdsdsdsdsd' },

success:function(res){

session=res.data;

console.log(session);

}

})

console.log(session);

}

我想把success中res.data赋值给外部变量session，可是运行结构是先打印出最后的session