小程序手机密码正则及引入icon

<!--index.wxml-->
<view class="wrap">
    <view class="bgimg">
      logo
    </view>
        <view class="userinfo">
            <view class="iconfont iconshouji" style="font-size:42rpx;color:gray"></view>
            <view> <input placeholder="请输入手机号" bindinput ="phone"></input> </view>
        </view>
        <view class="userinfo">
            <view class="iconfont iconsuo1" style="font-size:42rpx;color:gray"></view>
            <view> <input placeholder="请输入密码" type="password" bindinput ="password"></input> </view>
        </view>
        <view class="userinfobtn" bindtap="userinfobtn">登录</view>
</view>
//index.js
//获取应用实例
const app = getApp()
Page({
  data: {
    phone:'',
    password:''
  },
  //手机号
  phone(e){
    this.setData({
      phone: e.detail.value
    })
  },
  //密码
  password(e){
    this.setData({
      password: e.detail.value
    })
  },

  userinfobtn(){
    var phone = this.data.phone;
    var password = this.data.password;
    if (phone == '') {
      wx.showToast({
        title: '手机号不能为空',
        icon: 'none',
        duration: 1500
      })
      
      return false
    } 
    else if (phone.length != 11) {
      wx.showToast({
        title: '手机号长度有误！',
        icon: 'none',
        duration: 1500
      })
      return false;
    }else if (password == '') {
      wx.showToast({
        title: '请输入密码！',
        icon: 'none',
        duration: 1500
      })
      return false
    } 
    else if (password.length < 6) {
      wx.showToast({
        title: '密码长度需在6-18之间！',
        icon: 'none',
        duration: 1500
      })
      return false;
    }
    //let str = /^[a-zA-Z0-9_.-]+@[a-zA-Z0-9-]+(.[a-zA-Z0-9-]+)*.[a-zA-Z0-9]{2,6}$/ //邮箱正则
    //let str = /(^d{15}$)|(^d{18}$)|(^d{17}(d|X|x)$)/ //身份证号正则
    //let str = /^[A-Za-z0-9]+w{7}$/ //验证密码正则
    //  以字母开头，长度在6-18之间，只能包含字符、数字和下划线
    var reg = /^[a-zA-Z]w{5,17}$/;
    if (!reg.test(password)) {
      wx.showToast({
        title: '密码需以字母开头,包含字符、数字和下划线！',
        icon: 'none',
        duration: 2200
      })
      return false;
    }else{
      this.setData({
        password:password
      })
      console.log('手机号:'+password)
    }
    //手机号正则
    var myreg = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1})|(17[0-9]{1}))+d{8})$/;
    if (!myreg.test(phone)) {
      wx.showToast({
        title: '手机号有误！',
        icon: 'none',
        duration: 1500
      })
      return false;
    }else{
      this.setData({
        phone:phone,
      })
      wx.setStorageSync('phone', phone)//同步数据存储
      console.log('密码:'+phone)
    }
    return true;
  }
})
//css
.userinfobtn{
   86vw;
  height: 80rpx;
  line-height: 80rpx;
  margin-left: 7vw;
  margin-top: 50rpx;
  text-align: center;
  border-radius: 40rpx;
  color: white;
  letter-spacing: 7rpx;
  font-size: 32rpx;
  background-color:  rgb(51, 138, 238); /* 不支持线性的时候显示 */
  background-image: linear-gradient(to right, rgb(85, 198, 226), #6495ed);
  box-shadow: 10rpx 10rpx 10rpx rgba(141, 161, 167, 0.9);
}

引入icon

然后再app.wxss中@import "/icon/icon.wxss";即可