computed: {
    barStyle: function barStyle() {
      return {
        width: Math.round(this.format(this.value)*100/(this.max-this.min+1)) + '%',//这里是修改的地方
        height: this.barHeight
      };
    }
  },

onTouchMove: function onTouchMove(event) {
  if (this.disabled) return;
  this.touchMove(event);
  var rect = this.$el.getBoundingClientRect();
  var diff = this.deltaX / rect.width * (this.max-this.min+1);//这里是修改的地方
  this.updateValue(this.startValue + diff);
},

onClick: function onClick(event) {
  if (this.disabled) return;
  var rect = this.$el.getBoundingClientRect();
  var value = (event.clientX - rect.left) / rect.width * (this.max-this.min+1);//这里是修改的地方
  this.updateValue(value, true);
},

format: function format(value) {
  var correctVal = Math.round(Math.max(this.min, Math.min(value, this.max)) / this.step) * this.step;//这里是修改的地方
  return correctVal==this.min?0:correctVal;//这里是修改的地方
}

var http = require("http");
var httpProxy = require('http-proxy'); 
var proxy = httpProxy.createProxyServer({});
var express = require('express');
var app = express();
proxy.on('error', function (err, req, res) { 
    res.writeHead(500, { 
	'Content-Type': 'text/plain' 
    }); 
    res.end('500');
})  
app.get('*', proxyer);//把请求链接使用代理
function proxyer(req,res,next){
	delete req.headers.host;//一定要把host删除，不然会出现404，我在这里踩了好久的坑！
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "X-Requested-With");
    res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");
    proxy.web(req, res, {target: 'http://m.manhuatai.com'});
}
console.log("proxy listening on port 8765") 
app.listen(8765);

npm install
node proxyweb.js