el-input只能输入数字
<el-input v-model.number="el.num" maxlength="10" @input="inputChange($event)" :oninput="el.num = (el.num.toString()).replace(/[^\d]/g,'')" style="width:150px;margin-left:15px" placeholder="请输入值" ></el-input>
记得toString()一下,不然会报错