1.提供L4D2代码自动填充功能. Provide L4D2 code auto fill function.
Snippets have been generated from the valvesoftware documentation:
1.https://developer.valvesoftware.com/wiki/Left_4_Dead_2/Scripting/Script_Functions
2.https://developer.valvesoftware.com/wiki/Left_4_Dead_2/Scripting/Director_Scripts
3.https://developer.valvesoftware.com/wiki/List_of_Left_4_Dead_2_console_commands_and_variables