web-financial/pages/messageInfo/sub.wxs

var getstr = function (val) {
  if (val.length == 0 || val == undefined) {
    return;
  }
  if (val.length > 10) {
    // return (val.substring(0, 10) +"  "+ val.substring(11, 19));
    return (val.substring(0, 10));
  }
  else {
    return val;
  }
}
//exports: 通过该属性，对外共享本模块的私有变量与函数。
module.exports.getstr = getstr;