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Turbo C 2.0、Borland C++库函数及用例(38) return 0;
}
函数名: getchar
功 能: 从stdin流中读字符
用 法: int getchar(void);
程序例:#include <stdio.h>int main(void)
{
int c; /* Note that getchar reads from stdin and
is line buffered; this means it will
not return until you press ENTER. */ while ((c = getchar()) != '\n')
printf("%c", c); return 0;
}
函数名: getche
功 能: 从控制台取字符(带回显)
用 法: int getche(void);
程序例:#include <stdio.h>
#include <conio.h>int main(void)
{
char ch; printf("Input a character:");
ch = getche(); printf("\nYou input a '%c'\n", ch);
return 0;
}
函数名: getcolor
功 能: 返回当前画线颜色
用 法: int far getcolor(void);
程序例:#include <graphics.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <conio.h>int main(void)
{
/* request auto detection */
int gdriver = DETECT, gmode, errorcode; int color, midx, midy;
char colname[35];/* initialize graphics and local variables */
initgraph(&gdriver, &gmode, "");/* read result of initialization */
errorcode = graphresult();
/* an error occurred */
if (errorcode != grOk)
{
printf("Graphics error: %s\n",
grapherrormsg(errorcode)); printf("Press any key to halt:");
getch();
/* terminate with an error code */
exit(1);
} midx = getmaxx() / 2;
midy = getmaxy() / 2;
setcolor(getmaxcolor());/* for centering text on the display */
settextjustify(CENTER_TEXT, CENTER_TEXT);/* get the current drawing color */
color = getcolor();/* convert color value into a string */
itoa(color, colname, 10);
strcat(colname,"is the current drawing color.");/* display a message */
outtextxy(midx, midy, colname);/* clean up */
getch();
closegraph();
return 0;
}
函数名: getcurdir
功 能: 取指定驱动器的当前目录
用 法: int getcurdir(int drive, char *direc);
程序例:#include <dir.h>
#include <stdio.h>
#include <string.h>char *current_directory(char *path)
{
strcpy(path, "X:\\");
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