template1/uni-mall/pages/commentPost/commentPost.vue

<template>
	<view class="container">
		<view class="post-comment">
			<view class="input-box">
				<textarea class="content" focus="true" v-model="content" maxlength="140" placeholder="留言经过筛选后，对所有人可见" />
				<text class="count">{{140 - content.length}}</text>
	        </view>
	        <view class="btns">
	            <view class="close" @tap="onClose">取消</view>
	            <view class="post" @tap="onPost">发表</view>
	        </view>
	    </view>
	</view>
</template>

<script>
	const util = require("@/utils/util.js");
	const api = require('@/utils/api.js');
	export default {
		data() {
			return {
			   typeId: 0,
			   valueId: 0,
			   content: ''
			}
		},
		methods: {
			onPost() {
				let that = this;
			
				if (!that.content) {
				  util.toast('请填写评论')
				  return false;
				}
			
				util.request(api.CommentPost, {
				  typeId: that.typeId,
				  valueId: that.valueId,
				  content: that.content
				}, 'POST', 'application/json').then(function (res) {
				  if (res.errno === 0) {
					uni.showToast({
					  title: '评论成功',
					  complete: function(){
						uni.navigateBack({
						  delta: 1
						});
					  }
					})
				  }
				});
			  }
		},
		onClose:function() {
			uni.navigateBack({
				delta: 1
			});
		},
		onLoad: function(options) {
			var that = this;
			that.typeId= parseInt(options.typeId)
			that.valueId= parseInt(options.valueId)
		}
	}
</script>

<style lang="scss">
	page, .container {
	  height: 100%;
	  background: #f4f4f4;
	}
	
	.post-comment {
	  width: 750rpx;
	  height: auto;
	  overflow: hidden;
	  padding: 30rpx;
	}
	
	.post-comment .input-box {
	  height: 337.5rpx;
	  width: 690rpx;
	  position: relative;
	  background: #fff;
	}
	
	.post-comment .input-box .content {
	  position: absolute;
	  top: 0;
	  left: 0;
	  display: block;
	  background: #fff;
	  font-size: 29rpx;
	  color: #333;
	  height: 300rpx;
	  width: 650rpx;
	  padding: 20rpx;
	}
	
	.post-comment .input-box .count {
	  position: absolute;
	  bottom: 20rpx;
	  right: 20rpx;
	  display: block;
	  height: 30rpx;
	  width: 50rpx;
	  font-size: 29rpx;
	  color: #999;
	}
	
	.post-comment .btns {
	  height: 108rpx;
	}
	
	.post-comment .close {
	  float: left;
	  height: 108rpx;
	  line-height: 108rpx;
	  text-align: left;
	  color: #666;
	  padding: 0 30rpx;
	}
	
	.post-comment .post {
	  float: right;
	  height: 108rpx;
	  line-height: 108rpx;
	  text-align: right;
	  padding: 0 30rpx;
	}

</style>