方法一: 通过正则表达式实现 <template> <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm"> <el-row> <el-col :span="6"> <el-form-item label="金额" prop="money"> <el-input v-model.number="ruleForm.money"></el-input> </el-...