lixin-web/webapp/js/util/compt.js

vue and bootstrap

//加减乘除计算

export function add(a, b) {
    var c, d, e;
    try {
      c = a.toString().split(".")[1].length;
    } catch (f) {
      c = 0;
    }
    try {
      d = b.toString().split(".")[1].length;
    } catch (f) {
      d = 0;
    }
    return e = Math.pow(10, Math.max(c, d)), (mul(a, e) + mul(b, e)) / e;
  }

export function sub(a, b) {
    var c, d, e;
    try {
      c = a.toString().split(".")[1].length;
    } catch (f) {
      c = 0;
    }
    try {
      d = b.toString().split(".")[1].length;
    } catch (f) {
      d = 0;
    }
    return e = Math.pow(10, Math.max(c, d)), (mul(a, e) - mul(b, e)) / e;
  }

export function mul(a, b) {
    var c = 0,
      d = a.toString(),
      e = b.toString();
    try {
      c += d.split(".")[1].length;
    } catch (f) {}
    try {
      c += e.split(".")[1].length;
    } catch (f) {}
    return Number(d.replace(".", "")) * Number(e.replace(".", "")) / Math.pow(10, c);
  }

export function div(a, b) {
    var c, d, e = 0,
      f = 0;
    try {
      e = a.toString().split(".")[1].length;
    } catch (g) {}
    try {
      f = b.toString().split(".")[1].length;
    } catch (g) {}
    return c = Number(a.toString().replace(".", "")), d = Number(b.toString().replace(".", "")), mul(c / d, Math.pow(10, f - e));
  }


export default {
  add,sub,mul,div
}

window.compt = {
  add,sub,mul,div
}