微信小程序支付框样式以及功能

<view catchtap='showInputLayer' class="btn_pay">立即支付</view><!-- 密码输入框 --><view wx:if='{{showPayPwdInput}}'>    <view class='bg_layer'></view>    <view class='input_main'>        <view class='input_title'>            <view class='input_back' catchtap='hidePayLayer'><text></text></view>            <text>输入支付密码</text>        </view>        <view class='input_tip'><text>使用会员卡余额支付需要验证身份，验证通过后才可进行支付。</text></view>        <view class='input_row' catchtap='getFocus'>            <view class='pwd_item' wx:for='{{6}}' wx:key='item' wx:for-index='i'>                <text wx:if='{{pwdVal.length>i}}'></text>            </view>        </view>        <view class='forget_pwd' catchtap='hidePayLayer'>忘记密码</view>        <input class='input_control' password type='number' focus='{{payFocus}}' bindinput='inputPwd' maxlength='6'/>    </view></view>

//index.js//获取应用实例const app = getApp()Page({  data: {    showPayPwdInput: false,  //是否展示密码输入层    pwdVal: '',  //输入的密码    payFocus: true, //文本框焦点  },  onLoad: function () {    this.showInputLayer();  },  /**   * 显示支付密码输入层   */  showInputLayer: function(){    this.setData({ showPayPwdInput: true, payFocus: true });  },  /**   * 隐藏支付密码输入层   */  hidePayLayer: function(){    /**获取输入的密码**/    var val = this.data.pwdVal;/**在这调用支付接口**/    this.setData({ showPayPwdInput: false, payFocus: false, pwdVal: '' }, function(){      /**弹框**/      wx.showToast({        title: val,      })    });  },  /**   * 获取焦点   */  getFocus: function(){    this.setData({ payFocus: true });  },  /**   * 输入密码监听   */  inputPwd: function(e){      this.setData({ pwdVal: e.detail.value });      if (e.detail.value.length >= 6){        this.hidePayLayer();      }  }})

.btn_pay{  margin: 100rpx auto; width: 600rpx; height: 100rpx; line-height: 100rpx; border-radius: 100rpx;  background-color: #d3a95a; color: #fff; font-size: 36rpx; text-align: center; }/* 支付密码css start */.bg_layer{  position: fixed; left: 0; top: 0; bottom: 0; right: 0;  background-color: rgba(0, 0, 0, 0.6); z-index: 9998;}.input_main{    position: fixed; left: 0; bottom: 500rpx; width: 100%; height: 394rpx;    background-color: #fff; z-index: 9999;}.input_title{    width: 100%; height: 90rpx; line-height: 90rpx; text-align: center;     font-size: 32rpx; border-bottom: 1rpx solid #e2e2e2;}.input_back{    position: absolute; left: 0; top: 0;    width: 80rpx; height: 90rpx; display: flex; justify-content: center; align-items: center;}.input_back text{  width: 20rpx;  height: 20rpx;  background-color: white;  border: 1rpx solid #aaa;  border-width: 5rpx 0 0 5rpx;  transform: rotate(-45deg);}.input_tip{  margin: 30rpx; font-size: 24rpx; color: #888; }/* 密码掩码模拟 */.input_row{  width: 690rpx; margin: 0 auto; height: 98rpx; position: relative;  display: flex; align-items: center; border: 1rpx solid #e2e2e2; border-radius: 20rpx;}.input_row .pwd_item{  flex: 1; display: flex; align-items: center; justify-content: center;   height: 100%; border-right: 1rpx solid #e2e2e2; position: relative;}.pwd_item:nth-last-of-type(1) { border-right: 0; } .pwd_item text {   width: 30rpx; height: 30rpx; border-radius: 30rpx; background-color: #555;}.forget_pwd{   float: right; margin: 30rpx; width: 100rpx; text-align: right; font-size: 24rpx; color: #ff7800;}/* 文本输入框位置: 设置到左边隐藏 */.input_control {   position: relative; left: -300rpx; bottom: 0; width: 100rpx; height: 100rpx;}