190 lines
4.7 KiB
Vue
190 lines
4.7 KiB
Vue
<template>
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<view class="u-relative bg-gray fixed yodwbsHlmJ-all">
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<view class="jdwbHJCFxl ydwbzNqTbj" v-if="time<=0" @click="enter"><text>进入</text></view>
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<view class="jdwbHJCFxl" v-else ><text>{{time}}</text></view>
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<image src="./asz.JPG" v-if="false" mode=""></image>
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<view class="w-full dumdwbwauP">
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<image src="/static/images/share_bg2.png" class="img"></image>
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</view>
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</view>
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</template>
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<script>
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export default {
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data() {
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return {
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time:3
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}
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},
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onLoad() {
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this.init()
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this.asdxxx(1212,5)
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this.jhjkhjk(1212.5)
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this.kuuuuu(1212,5)
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this.ytutyuty(1212,5)
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this.tyutre(1212,5)
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},
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methods: {
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//乘法函数，用来得到精确的乘法结果
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//说明：javascript的乘法结果会有误差，在两个浮点数相乘的时候会比较明显。这个函数返回较为精确的乘法结果。
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//调用：mul(arg1,arg2)
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//返回值：arg1乘以arg2的精确结果
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//
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kuuuuu(arg1, arg2) {
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var m = 0,
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s1 = arg1.toString(),
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s2 = arg2.toString();
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try {
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m += s1.split(".")[1].length;
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} catch (e) {
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m = 0;
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}
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try {
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m += s2.split(".")[1].length;
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} catch (e) {
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m = m || 0;
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}
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return (
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(Number(s1.replace(".", "")) * Number(s2.replace(".", ""))) /
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Math.pow(10, m)
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);
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}, //除法函数，用来得到精确的除法结果
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//说明：javascript的除法结果会有误差，在两个浮点数相除的时候会比较明显。这个函数返回较为精确的除法结果。
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//调用：div(arg1,arg2)
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//返回值：arg1除以arg2的精确结果
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asdxxx(arg1, arg2) {
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var r1, r2, m, n;
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try {
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r1 = arg1.toString().split(".")[1].length;
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} catch (e) {
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r1 = 0;
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}
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try {
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r2 = arg2.toString().split(".")[1].length;
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} catch (e) {
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r2 = 0;
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}
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m = Math.pow(10, Math.max(r1, r2));
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//动态控制精度长度
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n = r1 >= r2 ? r1 : r2;
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return ((arg1 * m - arg2 * m) / m).toFixed(n);
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},
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ytutyuty(arg1, arg2) {
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var r1, r2, m, n;
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try {
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r1 = arg1.toString().split(".")[1].length;
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} catch (e) {
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r1 = 0;
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}
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try {
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r2 = arg2.toString().split(".")[1].length;
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} catch (e) {
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r2 = 0;
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}
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m = Math.pow(10, Math.max(r1, r2));
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n = r1 >= r2 ? r1 : r2;
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return ((arg1 * m + arg2 * m) / m).toFixed(n);
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},
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tyutre(arg1, arg2) {
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var t1 = 0,
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t2 = 0,
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r1,
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r2;
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try {
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t1 = arg1.toString().split(".")[1].length;
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} catch (e) {
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t1 = 0;
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}
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try {
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t2 = arg2.toString().split(".")[1].length;
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} catch (e) {
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t2 = 0;
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}
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r1 = Number(arg1.toString().replace(".", ""));
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r2 = Number(arg2.toString().replace(".", ""));
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return mul(r1 / r2, Math.pow(10, t2 - t1));
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},
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/**
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* 保留小数n位，不进行四舍五入
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* num你传递过来的数字,
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* decimal你保留的几位,默认保留小数后两位
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* isInt 是否保留0。如：12.20 是否保留0
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*/
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jhjkhjk(num, decimal = 2, isInt = false) {
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num = num.toFixed(3).toString();
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const index = num.indexOf(".");
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if (index !== -1) {
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num = num.substring(0, decimal + index + 1);
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} else {
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num = num.substring(0);
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}
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//截取后保留两位小数
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if (isInt) {
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return parseFloat(num);
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} else {
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return parseFloat(num).toFixed(decimal);
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}
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},
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//乘法函数，用来得到精确的乘法结果
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//说明：javascript的乘法结果会有误差，在两个浮点数相乘的时候会比较明显。这个函数返回较为精确的乘法结果。
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//调用：mul(arg1,arg2)
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//返回值：arg1乘以arg2的精确结果
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enter(){
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uni.reLaunch({
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url:'/pages/index/index'
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})
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},
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init(){
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this.timer=setInterval(()=>{
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this.time--
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if(this.time<=0){
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clearInterval(this.timer)
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}
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},1000)
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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.yodwbsHlmJ-all{
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position: fixed;
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inset: 0;
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.jdwbHJCFxl{
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position: absolute;
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z-index: 10;
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width: 50rpx;
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height: 50rpx;
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text-align: center;
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display: flex;
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justify-content: center;
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font-size: 14px;
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color: #555;
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align-items: center;
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right: 30rpx;
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border-radius: 50%;
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background-color: rgba(255, 255, 255, .5);
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border: 1px solid rgba(255, 255, 255, .8);
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top: calc(var(--status-bar-height) + 20rpx );
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}
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.ydwbzNqTbj{
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border-radius: 100rpx;
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white-space: nowrap;
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width: auto;
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height: auto;
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padding: 4rpx 20rpx;
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}
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.dumdwbwauP{
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position: absolute;
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inset: 0;
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.img{
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width: 100%;
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height: 100%;
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}
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}
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}
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</style>
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