public static UserCaseForm getInstance() {
        if (userCaseForm == null) {
            userCaseForm = new UserCaseForm();
        }
        return userCaseForm;
    }
<pre>
UserCaseForm
</pre>

@author <a href="https://github.com/rememberber">RememBerBer</a>
@since 2019/5/6.
src/main/java/com/fangxuele/tool/push/ui/form/UserCaseForm.java