1.oninput =“value=value.replace(/[^\d]/g,’’)” //只能输入数字

2.oninput =“value=value.replace(/[^0-9.]/g,’’)” //只能输入数字和小数

3.@blur="number=$event.target.value"//解决获取不到值的问题

          <el-input v-model="number"

                    @blur="number=$event.target.value"

                    oninput="value=value.replace(/[^0-9.]/g,'')">

          </el-input>

    <el-input

              v-model="ruleForm_newOrder.cost"

              style="width:200px"

              onkeyup="value=value.replace(/[^0-9.]/g,'')"

              placeholder="请输入检测费用"

            >

              <i slot="suffix" class="iconfont icon-renminbi" />

            </el-input>