c sprintfԴ??
#include
#include
#include
#include
#include
#include
#include
#include
#include
/* Define constants for the calculator */
#define UP 0x
#define DOWN 0x
#define LEFT 0x4B
#define RIGHT 0x4D
#define ENTER 0x0D
/* Global variables */
double num1 = 0, num2 = 0, result = 0;
char str1[] = ".+-*/知消扒Qc=^%";
char cnum[5], str2[] = "", c;
int x, y, x0, y0, i, j, v, m, n, act, flag = 1;
/* Function prototypes */
void drawboder(void);
void initialize(void);
void computer(void);
void changetextstyle(int font, int direction, int charsize);
void mwindow(char *header);
int specialkey(void);
int arrow();
/* Main function */
int main() {
initialize();
computer();
closegraph();
return 0;
}
/* Initialize the graphics system */
void initialize(void) {
int xasp, yasp;
GraphDriver = DETECT;
initgraph( &GraphDriver, &GraphMode, "" );
ErrorCode = graphresult();
if (ErrorCode != grOk) {
printf("Graphics System Error: %s\n", grapherrormsg(ErrorCode));
exit(1);
}
getpalette( &palette );
MaxColors = getmaxcolor() + 1;
MaxX = getmaxx();
MaxY = getmaxy();
getaspectratio( &xasp, &yasp );
AspectRatio = (double)xasp / (double)yasp;
}
/* Main calculator function */
void computer(void) {
struct viewporttype vp;
int color, height, width;
mwindow("Calculator");
color = 7;
getviewsettings( &vp );
width = (vp.right + 1) / ;
height = (vp.bottom - ) / ;
x = width / 2;
y = height / 2;
setfillstyle(SOLID_FILL, color + 3);
bar( x + width * 2, y, x + 7 * width, y + height );
setcolor( color + 3 );
rectangle( x + width * 2, y, x + 7 * width, y + height );
setcolor(RED);
outtextxy(x + 3 * width, y + height / 2, "0.");
x = 2 * width - width / 2;
y = 2 * height + height / 2;
for (j = 0; j < 4; ++j) {
for (i = 0; i < 5; ++i) {
setfillstyle(SOLID_FILL, color);
setcolor(RED);
bar( x, y, x + width, y + height );
rectangle( x, y, x + width, y + height );
sprintf(str2, "%c", str1[j * 5 + i]);
outtextxy( x + (width / 2), y + height / 2, str2);
x += width + (width / 2);
}
y += (height / 2) * 3;
x = 2 * width - width / 2;
}
x0 = 2 * width;
y0 = 3 * height;
x = x0;
y = y0;
gotoxy(x, y);
arrow();
m = 0;
n = 0;
strcpy(str2, "");
while ((v = specialkey()) != ) {
while ((v = specialkey()) != ENTER) {
putimage(x, y, rar, XOR_PUT);
if (v == RIGHT) {
if (x >= x0 + 6 * width)
x = x0;
else
x += width + width / 2;
m++;
}
if (v == LEFT) {
if (x <= x0)
x = x0 + 6 * width;
else
x -= width - width / 2;
m--;
}
if (v == UP) {
if (y <= y0)
y = y0 + 4 * height + height / 2;
else
y -= height - height / 2;
n--;
}
if (v == DOWN) {
if (y >= 7 * height)
y = y0;
else
y += height + height / 2;
n++;
}
putimage(x, y, rar, XOR_PUT);
}
c = str1[n * 5 + m];
if (isdigit(c) || c == '.') {
if (flag == -1) {
strcpy(str2, "-");
flag = 1;
}
sprintf(temp, "%c", c);
strcat(str2, temp);
setfillstyle(SOLID_FILL, color + 3);
bar(2 * width + width / 2, height / 2, * width / 2, 3 * height / 2);
outtextxy(5 * width, height, str2);
}
if (c == '+') {
num1 = atof(str2);
strcpy(str2, "");
act = 1;
setfillstyle(SOLID_FILL, color + 3);
bar(2 * width + width / 2, height / 2, * width / 2, 3 * height / 2);
outtextxy(5 * width, height, "0.");
}
if (c == '-') {
if (strcmp(str2, "") == 0)
flag = -1;
else {
num1 = atof(str2);
strcpy(str2, "");
act = 2;
setfillstyle(SOLID_FILL, color + 3);
bar(2 * width + width / 2, height / 2, * width / 2, 3 * height / 2);
outtextxy(5 * width, height, "0.");
}
}
if (c == '*') {
num1 = atof(str2);
strcpy(str2, "");
act = 3;
setfillstyle(SOLID_FILL, color + 3);
bar(2 * width + width / 2, height / 2, * width / 2, 3 * height / 2);
outtextxy(5 * width, height, "0.");
}
if (c == '/') {
num1 = atof(str2);
strcpy(str2, "");
act = 4;
setfillstyle(SOLID_FILL, color + 3);
bar(2 * width + width / 2, height / 2, * width / 2, 3 * height / 2);
outtextxy(5 * width, height, "0.");
}
if (c == '^') {
num1 = atof(str2);
strcpy(str2, "");
act = 5;
setfillstyle(SOLID_FILL, color + 3);
bar(2 * width + width / 2, height / 2, * width / 2, 3 * height / 2);
outtextxy(5 * width, height, "0.");
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