getBMI(){
        let userInfo = uni.getStorageSync("userInfo");
        let { weight,height,gender} = {...userInfo};
        this.gender = gender; // 获取用户的性别信息
        if(weight && height){
          let bmi = weight * 10000 / (height * height);
          if(18.5< bmi <= 24){
            this.bmiType = 1;
          }else {
            this.bmiType = 2;
            this.bmiMsk = '多多注意!'
          }
          this.bmi = parseInt(bmi);
        }else {
          this.bmiType = 3;
        }
      },