本程序有51系列单片机控制显示1602液晶显示，时序是自己写的，另外显示字符时带有坐标输入函数，方便使用者确定显示字符的位置后输入坐标然后显示相关字符。-The program has 51 Microcontroller LCD Display 1602, timing is write, and the other display character input function with the coordinates, to facilitate users to determine t