Here comes the bus. Why can't the applet find it?

The reason why the applet car came and couldn't be found was network problems and server failures.

1. network problem: the operation of the small program "Here comes the car" depends on the network environment. Poor network signal or unstable network will cause the applet to fail to run normally.

2. Server failure: The data and services of the applet "Here comes the car" are usually stored on the server. If the server fails, the applet cannot run normally.