获取验证码    点击发送验证码

data() {      return {        sendAuthCode: true,  // 控制显示'获取按钮'或'倒计时'的布尔值        auth_time: 0         // 倒计时计数器      };    },

getCode() {      this.sendAuthCode = false;      this.auth_time = 60;      const authTimer = setInterval(() => {        this.auth_time--;        if (this.auth_time <= 0) {          this.sendAuthCode = true;          clearInterval(authTimer);        }      }, 1000);    },