我是通过以上链接解决的,验证游戏的完整性:
Verify integrity of game cache
1.Load Steam
2.From the Library section, right-click on the game and select Properties from the menu.
3.Select the Local files tab and click the Verify integrity of game cache... button.
4.Steam will verify the game's files - this process may take several minutes.
5.Once the process is completed, the Check Window will automatically exit