一些公用方法（自用）

持续更新

//公用方法
    //Date Wed Mar 17 2021 13:52:00 GMT+0800 (中国标准时间) 转标准的日期格式
    export function dateFormat(date){
        let y = date.getFullYear()
        let m = date.getMonth() + 1
        m = m < 10 ? ('0' + m) : m
        let d = date.getDate()
        d = d < 10 ? ('0' + d) : d
        let h =date.getHours()
        h = h < 10 ? ('0' + h) : h
        let M =date.getMinutes()
        M = M < 10 ? ('0' + M) : M
        let s =date.getSeconds()
        s = s < 10 ? ('0' + s) : s
        let dateTime= y + '-' + m + '-' + d + ' ' + h + ':' + M + ':' + s;
        return dateTime
    }
    //获取可视区的宽高
    export function getViewPortOffset() {
        if (window.innerWidth) {
            return {
                w: window.innerWidth,
                h: window.innerHeight
            }
        } else if (document.compatMode = "BackCompat") {
            return {
                w: document.body.clientWidth,
                h: document.body.clientHeigth
            }
        } else {
            return {
                w: document.documentElement.clientWidth,
                h: document.documentElement.clientHeight
            }
        }
    }
     //完成将 toChineseNum， 可以将数字转换成中文大写的表示，处理到万级别，例如 toChineseNum(12345)，返回 一万二千三百四十五。
     export function toChinesNum(num) {
        let changeNum = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九']; //changeNum[0] = "零"
        let unit = ["", "十", "百", "千", "万"];
        num = parseInt(num);
        let getWan = (temp) => {
            let strArr = temp.toString().split("").reverse();
            let newNum = "";
            for (var i = 0; i < strArr.length; i++) {
                newNum = (i == 0 && strArr[i] == 0 ? "" : (i > 0 && strArr[i] == 0 && strArr[i - 1] == 0 ? "" : changeNum[strArr[i]] + (strArr[i] == 0 ? unit[0] : unit[i]))) + newNum;
            }
            return newNum;
        }
        let overWan = Math.floor(num / 10000);
        let noWan = num % 10000;
        if (noWan.toString().length < 4) noWan = "0" + noWan;
        return overWan ? getWan(overWan) + "万" + getWan(noWan) : getWan(num);
        
    }

// 使用
import { toChinesNum } from '@/components/publicMethod.js'//公用方法（方法名）