<input v-model="price" type="digit" @input="handleInput2" :maxlength="moneyMaxLeng" class="item-asw" placeholder="请输入金额"/>
handleInput2(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
var len1 = val.substr(0, 1);
var len2 = val.substr(1, 1);
//如果第一位是0,第二位不是点,就用数字把点替换掉
if (val.length > 1 && len1 == 0 && len2 != ".") {
val = val.substr(1, 1);
}
//第一位不能是.
if (len1 == ".") {
val = "";
}
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;
if (numDian === 2) {
this.moneyMaxLeng = val.length;
}
} else {
this.moneyMaxLeng = 8;
}
this.price = val;
});
}