可以输入的下拉框，js源代码。根据输入内容自动过滤下拉列表中的结果选项。,Can enter the drop-down box, js source code. Automatic filtering based on input the results of the drop-down list option.

在js中调用ocx组件，主要用于在js中操作一些硬件，js操作硬件，也就是操作硬件封装好的ocx 或activeX-Js call ocx components, mainly for the operation of some hardware, js js operate the hardware, the operating hardware is packaged or activeX ocx