输入框实现格式保留2位小数

<input

class="uni-input"

placeholder="请输入"

:maxlength="moneyMaxLeng"

type="text"

@input="oninput"

v-model="authData.companyInfo.income"

oninput (e) {

this.$nextTick(() => {

let val = e.target.value.toString();

val = val.replace(/[^\d.]/g, ""); //清除"数字"和"."以外的字符

val = val.replace(/\.{2,}/g, "."); //只保留第一个. 清除多余的

val = val.replace(/^0+\./g, '0.');

val = val.match(/^0+[1-9]+/) ? val = val.replace(/^0+/g, '') : val

val = (val.match(/^\d*(\.?\d{0,2})/g)[0]) || ''

if (val.includes(".")) {

let numDian = val.toString().split(".")[1].length;

// let numZheng = val.toString().split(".")[0].length;

if (numDian === 2) {

this.moneyMaxLeng = val.length;

}

} else {

this.moneyMaxLeng = 14;

}

let intPartFormat = val.toString().replace(/\d{1,3}(?=(\d{3})+(\.\d*)?$)/g, "$&,") // 将整数部分逢三一断

this.authData.companyInfo.income = intPartFormat;

});