public class List<T>\n{\n public int Count\n {\n get;\n }\n}\nRun Code Online (Sandbox Code Playgroud)\n我注意到Count是一个int,结果会小于 0\xef\xbc\x9f
如果Count可以小于0,我必须写\xef\xbc\x9a
if(myList.Count < 1)\n{\n \n}\nRun Code Online (Sandbox Code Playgroud)\n否则我可以这样写:
\nif(myList.Count == 0)\n{\n \n}\nRun Code Online (Sandbox Code Playgroud)\n