wepy vant icon 本地路径不可用问题解决

引用vant的icon组件导致文件不可编译，原因是icon本地路径不识别，解决方案如下：
找到node_modules中vant下的dist或lib,找到里面的 wxs/utils.wxs

image.png image.png

代码：

var bem = require('./bem.wxs').bem;
var memoize = require('./memoize.wxs').memoize;
var addUnit = require('./add-unit.wxs').addUnit;

function isSrc(url) {
  return url.indexOf(".") === 0 || url.indexOf("/") === 0 || url.indexOf('http') === 0 || url.indexOf('data:image') === 0 || url.indexOf('//') === 0;
}

module.exports = {
  bem: memoize(bem),
  memoize: memoize,
  addUnit: addUnit,
  isSrc: isSrc
};

这样本地路径就可用了

<van-cell-group class="link-box"> 
        <van-cell 
            is-link
            title="更改授权手机号"
            link-type="navigateTo"
            url="/pages/account/changeTel"
            icon="/images/changetel_icon.png"
        />
        <van-cell 
            is-link
            title="注销账户"
            link-type="navigateTo"
            url="/pages/account/logout"
            icon="/images/logout_icon.png"
        />
    </van-cell-group>