如果数据不存在（不包括主键），则插入MySQL(MySQL insert if data doesn't exist(excluding primary key))

 ExternalInterface是fscommand的直接替代品， fscommand是Flash和容器应用程序之间通信的旧方法（Flash前播放器8）（请参阅Adobe文档 ）。 
 
 再次从文档中， ExternalInterface优于fscommand的优点如下： 
 
 
 
 您可以使用任何JavaScript函数，而不仅仅是可以与fscommand（）函数一起使用的函数。 
 
 
 您可以使用任何名称传递任意数量的参数; 您不仅限于传递命令和单个字符串参数。 这为外部API提供了比fscommand（）更大的灵活性。 
 
 
 您可以传递各种数据类型（例如Boolean，Number和String）; 您不再局限于String参数。 
 
 
 您可以接收调用的值，该值立即返回到ActionScript（作为您调用的返回值）。 
 
 
 如果您的目标是Flash Player 8或更高版本，则建议您使用ExternalInterface 。 

ExternalInterface is a direct replacement for fscommand, which was the old method (pre Flash player 8) of communicating between Flash and the container application (see Adobe documentation).
 
From the documentation again, the advantages of ExternalInterface over fscommand are as follows: 
 
 
 
You can use any JavaScript function, not only the functions that you can use with the fscommand() function. 
 
 
You can pass any number of arguments, with any names; you aren't limited to passing a command and a single string argument. This gives the external API much more flexibility than fscommand().
 
 
You can pass various data types (such as Boolean, Number, and String); you are no longer limited to String parameters.
 
 
You can receive the value of a call, and that value returns immediately to ActionScript (as the return value of the call you make).
 
 
If you're targeting Flash Player 8 or later the recommendation is that you use ExternalInterface.