微信小程序手机号验证码登录的项目实现

<view class="content_bottom">
      <form bindsubmit="formSubmit">
        <view class="field">
          <label for="phone">手机号</label>
          <input class="int" name="phone" type="number" placeholder="请输入手机号码" placeholder-class="pla2" value='{{phone}}' bindinput='getPhoneValue'  />
        </view>
        <view class="field">
          <label for="phone">手机验证码</label>
          <view class='changeInfoName'>
            <input type="number" placeholder='请输入验证码' bindinput='getCodeValue' placeholder-class="pla2" value='{[code]}' style='width:70%;' />
            <button class='codeBtn' style="background-color:{{pageBackgroundColor}}" bindtap='getVerificationCode' disabled='{{disabled}}'>{{codename}}</button>
          </view>
        </view>
        <view class="form_btn2">
          <button class="btn_login" type="primary"  formType="submit">下一步</button>
        </view>
      </form>
    </view>

// pages/login/login.js
import http from '../../http/api';
import env from '../../http/evn.js';
Page({

  data: {
    phone: '',
    code: '',
    codename: '获取验证码',
  },
  getPhoneValue: function (e) {
    this.setData({
      phone: e.detail.value
    })
  },
  getCodeValue: function (e) {
    this.setData({
      code: e.detail.value
    })
  },
    //获取验证码
    getVerificationCode() {
      this.getCode();
      var _this = this
      // _this.setData({
      //   disabled: true
      // })
    },
    getCode: function () {
      console.log(this.data.phone, '手机号')
      var _this = this;
      var myreg = /^(14[0-9]|13[0-9]|15[0-9]|16[0-9]|17[0-9]|18[0-9]|19[0-9])\d{8}$$/;
      if (this.data.phone == "") {
        wx.showToast({
          title: '手机号不能为空',
          icon: 'none',
          duration: 1000
        })
        return false;
      } else if (!myreg.test(this.data.phone)) {
        wx.showToast({
          title: '请输入正确的手机号',
          icon: 'none',
          duration: 1000
        })
        return false;
      } else {
        _this.setData({
          disabled: true
        })
        http.sendsms({
          data: {
            phone: this.data.phone
          },
          success(res) {
            var bgColor = this.data.pageBackgroundColor == '#9db8db';
            _this.setData({
              pageBackgroundColor: bgColor
              //  iscode: res.data.data
            })
            var num = 60;
            var timer = setInterval(function () {
              num--;
              if (num <= 0) {
                clearInterval(timer);
                _this.setData({
                  codename: '重新发送',
                  disabled: false
                })
              } else {
                _this.setData({
                  codename: num + "s"
                })
              }
            }, 1000)
          }
        })
      }
    },

})