聚焦時(shí)正常顯示，失焦時(shí)千分符顯示

Vue.directive("thousand", {
  // 被綁定元素插入父節(jié)點(diǎn)時(shí)調(diào)用
  inserted: function(el) {
    // 獲取input節(jié)點(diǎn)
    if (el.tagName.toLocaleUpperCase() !== "INPUT") {
      el = el.getElementsByTagName("input")[0];
    }
    // 千分位
    el.value = parseFloat(el.value).toLocaleString("zh", {
      minimumFractionDigits: 2,
      maximumFractionDigits: 2
    });
    // 聚焦轉(zhuǎn)化為數(shù)字格式（去除千分位）
    el.onfocus = e => {
      let a = el.value.replace(/,/g, ""); //去除千分號(hào)的','
      el.value = parseFloat(a).toFixed(2);
    };
    el.onblur = e => {
      el.value = parseFloat(el.value).toLocaleString("zh", {
        minimumFractionDigits: 2,
        maximumFractionDigits: 2
      });
    };
  }
});