此类问题的已有类似工作就是LED屏幕的显示，完成此题目主要改进是在其原理上尽可能简化代码，从而完成从控制台输入字母或字符串之后用*构成字母或字符串并显示出来的目标。-Such problems have similar work is the LED screen display, complete this subject main improvement is to simplify the code as much as possible on the principle, so that after the completion of the letter or string input from the console* constitute letters or string and displayed target.