js 正则表达式

不允许汉字

state.rulesForm.username = value.replace(/[\u4e00-\u9fa5]/gi, "");

只允许数字和字母

state.rulesForm.username = value.replace(/[^a-zA-Z0-9]+/g, "");

只允许数字

state.rulesForm.qlmId = value.replace(/[^0-9]/g, "");

只允许数字和字母和符号

this.form.username = this.form.username.replace(/[^a-zA-Z0-9@#$%^&*()._+=?\-,]+/g, "");

只允许字母和汉字

this.form.contact = this.form.contact.replace(/[^A-Za-z\u4e00-\u9fa5]+/g, "");

写法1

onInput(){

state.rulesForm.qlmId = value.replace(/[^0-9]/g, "");

}

写法1

<el-input v-model="form.mobilePhone" placeholder="请输入手机号" maxlength="11" οninput="value=value.replace(/[^\d\-\d]/g,'')">

</el-input>