限制input只能输入数字 输入其他内容会被退格
<el-input v-model="formData.mobilephone" style="width: 265px;" @keyup.native="number" maxlength="11" show-word-limit></el-input>
number(){ this.formData.mobilephone=this.formData.mobilephone.replace(/[^\.\d]/g,'');this.formData.mobilephone=this.formData.mobilephone.replace('.','');},
通过replace进行替换过滤