在进行数据处理时，经常要设计运行时间很长的程序，这样运行起来往往让人没有底。这是IDL进度条程序，调用非常简单，只要在循环体内加一调语句调用本函数即可实现。-In data processing, we often have to design a long run-time process, so that often people do not up and running at the end. This is a progress bar IDL procedure call is ve