js數字轉中文

  function toChinesNum(num) {
    if (!/^\d*(\.\d*)?$/.test(num)) {
      alert("Number is wrong!");
      return "Number is wrong!";
    }
    var AA = new Array("零", "一", "二", "三", "四", "五", "六", "七", "八", "九");
    var BB = new Array("", "十", "百", "千", "萬", "億", "點", "");
    var a = ("" + num).replace(/(^0*)/g, "").split("."),
      k = 0,
      re = "";
    for (var i = a[0].length - 1; i >= 0; i--) {
      switch (k) {
        case 0:
          re = BB[7] + re;
          break;
        case 4:
          if (!new RegExp("0{4}\\d{" + (a[0].length - i - 1) + "}$").test(a[0]))
            re = BB[4] + re;
          break;
        case 8:
          re = BB[5] + re;
          BB[7] = BB[5];
          k = 0;
          break;
      }
      if (k % 4 == 2 && a[0].charAt(i + 2) != 0 && a[0].charAt(i + 1) == 0) re = AA[0] + re;
      if (a[0].charAt(i) != 0) re = AA[a[0].charAt(i)] + BB[k % 4] + re;
      k++;
    }
    if (a.length > 1) //加上小數部分(如果有小數部分)
    {
      re += BB[6];
      for (var i = 0; i < a[1].length; i++) re += AA[a[1].charAt(i)];
    }
    return re;
  };

 alert(toChinesNum(782454587.045555))

這個demo大家可以直接測試下哦，數字如果實在實在特別大，會報錯，正常情況下大家也用不到啦