Null or nonexistent data gets complicated when the application expects a data value and gets nothing or unexpected values; that's when you must perform coding that properly handles these situations to ...
So I have a method:<BR><BR><pre class="ip-ubbcode-code-pre">int Foo()</pre><BR><BR>It either returns a value if successful or NULL if not. If I'm not mistaken, if I ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果