element-ui 使用input实时限制输入

vue文件

<el-input type="text" @input.native="changeCode" v-model="formSearch.licensedCode" maxlength="40" placeholder="请输入" clearable></el-input>changeCode() {this.$nextTick(() => {if(this.formSearch.licensedCode !== null){this.formSearch.licensedCode = this.formSearch.licensedCode.replace(/[^\d]/g,'')}})
},

 实时限制input中只能输入0-9的数字