实验性实验性Function that handles the load event.
Method to register an event handler for what happens when an entity loads.
无法在只读模式下调用此函数，详见 WorldBeforeEvents。
This function can be called in early-execution mode.
实验性Original function that was passed into the subscribe event, that is to be unregistered.
Unregisters a method that was previously subscribed to the subscription event.
无法在只读模式下调用此函数，详见 WorldBeforeEvents。
This function can be called in early-execution mode.
Registers a script-based event handler for handling what happens when an entity loads.