代码:
<form ng-app="myApp" ng-controller="validateCtrl"
name="myForm" novalidate>
<p>电话:<br>
<input type="text" name="phone" ng-model="phone" ng-pattern="/(^$)|^(((\+86)|(86))?1[34578]\d{9})$/">
<span style="color:red" ng-show="myForm.phone.$dirty && myForm.phone.$invalid">
联系电话格式不正确!</span>
</p>
<p>
<input type="submit"
ng-disabled="myForm.$invalid">
</p>
</form>
正则表达式:
1. 匹配空:^$
2. 匹配手机号:^(((\+86)|(86))?1[34578]\d{9})$
3. 控制提示信息的显示:ng-show="myForm.phone.$dirty && myForm.phone.$invalid"