What is the difference between warning codes cs0618 and cs0612

问题

I have seen both of the following warning codes being thrown for utilization of code marked obsolete.

cs0618 and cs0612.

0618 is Level 2 and 0612 is level 1 according to the documentation. Does anyone know what the difference is between these codes is and what causes one to be thrown instead of the other?

回答1:

I think the difference is that one contains a message and the other doesn't.

[Obsolete]                                  // CS0612
[Obsolete("Use newMethod instead", false)]  // CS0618
[Obsolete("Use newMethod instead", true)]   // CS0619

来源：https://stackoverflow.com/questions/10359117/what-is-the-difference-between-warning-codes-cs0618-and-cs0612