input只能输入数字小数点后两位
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<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<input style="-webkit-user-select:auto" type="Number" ref="Inp"
onkeyup="this.value=this.value.replace(/[^\d.]/g,'');" keyboardType="UIKeyboardTypeDecimalPad;" v-model="value"
class="home-payment-input" @input="checkInput" autofocus @click="$refs.Inp.focus()" />
<script>
export default {
data() {
return {
value: ""
}
},
methods: {
checkInput() {
this.value = this.dealInputVal(this.value);
},
dealInputVal(value) {
value = value.replace(/^0*(0\.|[1-9])/, "$1");
value = value.replace(/[^\d.]/g, ""); //清除"数字"和"."以外的字符
value = value.replace(/^\./g, ""); //验证第一个字符是数字而不是字符
value = value.replace(/\.{1,}/g, "."); //只保留第一个.清除多余的
value = value
.replace(".", "$#$")
.replace(/\./g, "")
.replace("$#$", ".");
value = value.replace(/^(-)*(\d*)\.(\d\d).*$/, "$1$2.$3"); //只能输入两个小数
value =
value.indexOf(".") > 0 ?
value.split(".")[0].substring(0, 10) + "." + value.split(".")[1] :
value.substring(0, 10);
if (value == "") {
this.disabled = true;
} else if (value == Number(0)) {
this.disabled = true;
} else if (value == "0.") {
this.disabled = true;
} else {
this.disabled = false;
}
return value;
},
}
}
</script>
</body>
</html>
