应该使用箭头函数，另外记得箭头函数中this指向定时器，所以在定时器之前用const that = this 在箭头函数中使用that指向vuedata() {return {uname: "",pwd: "",phone: "",code: "",sendMsg: "发送验证码",time: 60,disabled: false, //表示按钮是否禁用timer: "", //绑