+-------------------------+---+--------+--------+--------+----------+
| Class Type | | normal | static | sealed | abstract |
+-------------------------+---+--------+--------+--------+----------+
| Can be instantiated | : | yes | no | yes | no |
| Can be inherited | : | yes | no | no | yes |
| Can inherit from others | : | yes | no | yes | yes |
+-------------------------+---+--------+--------+--------+----------+相关文章：