vue input框数字后保留两位小数正则

<el-input

type="text"

v-model.trim="ruleForm2.marketPrice"

maxlength="10"

@keyup.native="ruleForm2.marketPrice =ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/[^d.]/g,'');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/.{2,}/g,'.');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/^./g,'');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace('.','$#$').replace(/./g,'').replace('$#$','.');

ruleForm2.marketPrice = ruleForm2.marketPrice.replace(/^(-)*(d+).(dd).*$/,'$1$2.$3');

"

></el-input>

 

 

function clearNoNum(obj)

{

//先把非数字的都替换掉，除了数字和.

obj.value = obj.value.replace(/[^d.]/g,"");

//保证只有出现一个.而没有多个.

obj.value = obj.value.replace(/.{2,}/g,".");

//必须保证第一个为数字而不是.

obj.value = obj.value.replace(/^./g,"");

//保证.只出现一次，而不能出现两次以上

obj.value = obj.value.replace(".","$#$").replace(/./g,"").replace("$#$",".");

//只能输入两个小数

obj.value = obj.value.replace(/^(-)*(d+).(dd).*$/,'$1$2.$3');

}