public link unit map {}
driver.map = map;
public link unit char {} = driver.char;
public link void OS_init(){} = driver.OS_init;
public link void 清空(){} = driver.clear;
public link void 清空第_行(bit n1){} = driver.clear_line;
public link void 第_行第_列显示字符_(bit n1,bit n3,bit n5){} = driver.print_line;
public link void 设置数字字体为_(bit n1){} = driver.SetNumberFont;
