如何在linux下用C语言实现字幕的左右滚动

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解决时间 2021-03-11 21:50

提问者网友：不要迷恋哥
2021-03-11 12:44

最佳答案

五星知识达人网友：蕴藏春秋
2021-03-11 13:03

用死循环每次将显示的字幕删除然后把字幕往前移一位再显示达到一定的距离后再一点一点删除之前的空格给个判断条件退出即可这样可以做到字幕的滚动

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1楼网友：舍身薄凉客
2021-03-11 13:10

自己写函数 #include #include static struct termios initial_settings, new_settings; static int peek_character = -1; void init_keyboard(void); void close_keyboard(void); int kbhit(void); int readch(void); void init_keyboard() { tcgetattr(0,&initial_settings); new_settings = initial_settings; new_settings.c_lflag |= icanon; new_settings.c_lflag |= echo; new_settings.c_lflag |= isig; new_settings.c_cc[vmin] = 1; new_settings.c_cc[vtime] = 0; tcsetattr(0, tcsanow, &new_settings); } void close_keyboard() { tcsetattr(0, tcsanow, &initial_settings); } int kbhit() { unsigned char ch; int nread; if (peek_character != -1) return 1; new_settings.c_cc[vmin]=0; tcsetattr(0, tcsanow, &new_settings); nread = read(0,&ch,1); new_settings.c_cc[vmin]=1; tcsetattr(0, tcsanow, &new_settings); if(nread == 1) { peek_character = ch; return 1; } return 0; } int readch() { char ch; if(peek_character != -1) { ch = peek_character; peek_character = -1; return ch; } read(0,&ch,1); return ch; } int main() { init_keyboard(); while(1) { kbhit(); printf("\n%d\n", readch()); } close_keyboard(); return 0; }

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