微信小程序wxs语法格式化时间

```JavaScript
/*
 * format string // yyyy-MM-dd HH:mm:ss 时间格式
 * timestamp  number //时间
 * Auth: WANGJIAN
 */
var Format = function Format(format, timestamp) {
  if (!format) {
    format = "yyyy-MM-dd hh:mm:ss";
  }
  timestamp = parseInt(timestamp)*1000;
  var realDate = getDate(timestamp);
  function timeFormat(num) {
    return num < 10 ? '0' + num : num;
  }
  var date = [
    ["M+", timeFormat(realDate.getMonth() + 1)],
    ["d+", timeFormat(realDate.getDate())],
    ["h+", timeFormat(realDate.getHours())],
    ["m+", timeFormat(realDate.getMinutes())],
    ["s+", timeFormat(realDate.getSeconds())],
    ["q+", Math.floor((realDate.getMonth() + 3) / 3)],
    ["S+", realDate.getMilliseconds()],
  ];
  var reg1 = getRegExp("(y+)", "i").exec(format);
  if (reg1) {
    format = format.replace(reg1[1], (realDate.getFullYear() + '').substring(4 - reg1[1].length));
  }
  for (var i=0;i<date.length;i++) {
    var k = date[i][0];
    var v = date[i][1];

    var reg2 = getRegExp("(" + k + ")").exec(format);
    if (reg2) {
      format = format.replace(reg2[1], reg2[1].length == 1
        ? v : ("00" + v).substring(("" + v).length));
    }
  }
  return format;
};
module.exports = {
  Format: Format
};
```

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博客描述

用于小程序页面渲染，格式化时间