C语言函数大全(d开头)

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函数名: delay

功能: 将程序的执行暂停一段时间(毫秒)

用法: void delay(unsigned milliseconds);

程序例:

/* Emits a 440-Hz tone for 500 milliseconds */

#include

int main(void)

{

sound(440);

delay(500);

nosound();

return 0;

}

函数名: delline

功能: 在文本窗口中删去一行

用法: void delline(void);

程序例:

#include

int main(void)

{

clrscr();

cprintf("The function DELLINE deletes \

the line containing the\r\n");

cprintf("cursor and moves all lines \

below it one line up.\r\n");

cprintf("DELLINE operates within the \

currently active text\r\n");

cprintf("window. Press any key to \

continue . . .");

gotoxy(1,2); /* Move the cursor to the

second line and first column */

getch();

delline();

getch();

return 0;

}