el-input 只能输入数字 小数
<el-form-item label="服务费用" prop="serviceFee">
<el-input v-model="formOffer.serviceFee" oninput="value=value.replace(/^\.+|[^\d.]/g,'')" ></el-input>
</el-form-item>
<el-form-item label="服务费用" prop="serviceFee">
<el-input v-model="formOffer.serviceFee" oninput="value=value.replace(/^\.+|[^\d.]/g,'')" ></el-input>
</el-form-item>