A. c語言計數器
#include <stdlib.h>
#include <math.h>
#include <graphics.h>
#include <stdio.h>
#include <process.h>
#define EXCAPE 27
#define ENTER 13
main(){
int press,i,x,y,x1,y1,ch_z=0;
int dian=0;
char ch='0'; /*input + - * / */
char emp[80],sum[80],*e,*s;
double yuan=0.000000000000;
void init(void);
void clear_z(char *u);
double strtoflt(char *p);
int getkey();
int gd=DETECT, gm;
initgraph(&gd, &gm, "");
e=emp;
s=sum;
init();
x = (getmaxx() / 2) - 120;
y = (getmaxy() / 2) - 150;
x1 = (getmaxx() / 2) + 120;
y1 = (getmaxy() / 2) + 150;
while(1){
press = getkey();
switch(press){
case EXCAPE:
exit(0);
case 47:
bar (x + 10, y + 80 + 10, x + 60 - 10, y + 80 + 60 - 10);
delay(8000);
init();
if (ch!='0'){
switch(ch){
case '/':
if (strtoflt(emp)==0.0){
ch='0';
ch_z=0;
dian=0;
emp[0]='\0';
sum[0]='\0';
e=emp;
s=sum;
outtextxy(x+30,y+40,"error!!!!!");
break;
}
yuan = strtoflt(sum) / strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
break;
case '*':
yuan = strtoflt(sum) * strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
break;
case '+':
yuan = strtoflt(sum) + strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
break;
case '-':
if (strtoflt(sum)>=strtoflt(emp)){
yuan = strtoflt(sum) - strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
}
else{
yuan=strtoflt(emp)-strtoflt(sum);
sprintf(sum,"-%0.10f",yuan);
}
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
}
}
else{
if (ch_z==0){
outtextxy(x+30,y+40,emp);
stpcpy(sum,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
}
ch='/';
ch_z=0;
emp[0]='\0';
e=emp;
dian=0;
break;
case 42:
bar (x + 60 + 10, y + 80 + 10, x + 60 * 2 - 10, y + 80 + 60 - 10);
delay(8000);
init();
if (ch!='0'){
switch(ch){
case '/':
yuan = strtoflt(sum) / strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '*':
yuan = strtoflt(sum) * strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '+':
yuan = strtoflt(sum) + strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '-':
if (strtoflt(sum)>=strtoflt(emp)){
yuan = strtoflt(sum) - strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
}
else{
yuan=strtoflt(emp)-strtoflt(sum);
sprintf(sum,"-%0.10f",yuan);
}
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
}
}
else{
if (ch_z==0){
outtextxy(x+30,y+40,emp);
stpcpy(sum,emp);
e=emp;
}
else
outtextxy(x+30,y+40,sum);
}
ch='*';
ch_z=0;
dian=0;
break;
case 45:
bar (x + 60 * 2 + 10, y + 80 + 10, x + 60 * 3 - 10, y + 80 + 60 - 10);
delay(8000);
init();
if (ch!='0'){
switch(ch){
case '/':
yuan = strtoflt(sum) / strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '*':
yuan = strtoflt(sum) * strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '+':
yuan = strtoflt(sum) + strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '-':
if (strtoflt(sum)>=strtoflt(emp)){
yuan = strtoflt(sum) - strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
}
else{
yuan=strtoflt(emp)-strtoflt(sum);
sprintf(sum,"-%0.10f",yuan);
}
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
}
}
else{
if (ch_z==0){
outtextxy(x+30,y+40,emp);
stpcpy(sum,emp);
e=emp;
}
else
outtextxy(x+30,y+40,sum);
}
ch='-';
ch_z=0;
dian=0;
break;
case 43:
bar (x + 60 * 3 + 10, y + 80 + 10, x + 60 * 4 - 10, y + 80 + 60 - 10);
delay(8000);
init();
if (ch!='0'){
switch(ch){
case '/':
yuan = strtoflt(sum) / strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '*':
yuan = strtoflt(sum) * strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '+':
yuan = strtoflt(sum) + strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '-':
if (strtoflt(sum)>=strtoflt(emp)){
yuan = strtoflt(sum) - strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
}
else{
yuan=strtoflt(emp)-strtoflt(sum);
sprintf(sum,"-%0.10f",yuan);
}
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
}
}
else{
if (ch_z==0){
outtextxy(x+30,y+40,emp);
stpcpy(sum,emp);
e=emp;
}
else
outtextxy(x+30,y+40,sum);
}
ch='+';
ch_z=0;
dian=0;
break;
case 49:
bar (x + 10, y + 80 + 53 + 10, x + 60 - 10, y + 80 + 53 * 2 - 4);
delay(8000);
init();
for (i=0;i<=79;i++){
if (emp[i]=='\0')
break;
}
if (ch_z==0){
*e='1';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 50:
bar (x + 60 + 10, y + 80 + 53 + 10, x + 60 * 2 - 10, y + 80 + 53 * 2 - 4);
delay(8000);
init();
for (i=0;i<=79;i++){
if (emp[i]=='\0')
break;
}
if (ch_z==0){
*e='2';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 51:
bar (x + 60 * 2 + 10, y + 80 + 53 + 10, x + 60 * 3 - 10, y + 80 + 53 * 2 - 4);
delay(8000);
init();
for (i=0;i<=79;i++){
if (emp[i]=='\0')
break;
}
if (ch_z==0){
*e='3';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case ENTER:
bar (x + 60 * 3 + 10, y + 80 + 53 + 10, x + 60 * 4 - 10, y + 80 + 53 * 2 - 4);
delay(8000);
init();
if (ch!='0'){
switch(ch){
case '/':
yuan = strtoflt(sum) / strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '*':
yuan = strtoflt(sum) * strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '+':
yuan = strtoflt(sum) + strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
case '-':
if (strtoflt(sum)>=strtoflt(emp)){
yuan = strtoflt(sum) - strtoflt(emp);
sprintf(sum,"%0.10f",yuan);
}
else{
yuan=strtoflt(emp)-strtoflt(sum);
sprintf(sum,"-%0.10f",yuan);
}
clear_z(sum);
outtextxy(x+30,y+40,sum);
emp[0]='\0';
e=emp;
break;
}
}
else{
if (ch_z==0){
outtextxy(x+30,y+40,emp);
stpcpy(sum,emp);
e=emp;
}
else{
outtextxy(x+30,y+40,sum);
}
}
ch='0';
ch_z=1;
dian=0;
break;
case 52:
bar (x + 10, y + 80 + 53 * 2 + 10, x + 60 - 10, y + 80 + 53 * 3 - 4);
delay(8000);
init();
if (ch_z==0){
*e='4';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 53:
bar (x + 60 + 10, y + 80 + 53 * 2 + 10, x + 60 * 2 - 10, y + 80 + 53 * 3 - 4);
delay(8000);
init();
if (ch_z==0){
*e='5';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 54:
bar (x + 60 * 2 +10, y + 80 + 53 * 2 + 10, x + 60 * 3 - 10, y + 80 + 53 * 3 - 4);
delay(8000);
init();
if (ch_z==0){
*e='6';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 46:
bar (x + 60 * 3 + 10, y + 80 + 53 * 2 + 10, x + 60 * 4 - 10, y + 80 + 53 * 3 - 4);
delay(8000);
init();
if (dian==0){
if (ch_z==0){
*e='.';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
}
else{
if (ch_z==0)
outtextxy(x+30,y+40,emp);
else
outtextxy(x+30,y+40,sum);
}
dian=1;
break;
case 55:
bar (x + 10, y + 80 + 53 * 3 + 10, x + 60 - 10, y + 80 + 53 * 4 - 4);
delay(8000);
init();
if (ch_z==0){
*e='7';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 56:
bar (x + 60 + 10, y + 80 + 53 * 3 + 10, x + 60 * 2 -10, y + 80 + 53 * 4 - 4);
delay(8000);
init();
if (ch_z==0){
*e='8';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 57:
bar (x + 60 * 2 + 10, y + 80 + 53 * 3 + 10, x + 60 * 3 - 10, y + 80 + 53 * 4 - 4);
delay(8000);
init();
if (ch_z==0){
*e='9';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 48:
bar (x + 60 * 3 + 10, y + 80 + 53 * 3 + 10, x + 60 * 4 - 10, y + 80 + 53 * 4 - 4);
delay(8000);
init();
if (ch_z==0){
*e='0';e++;*e='\0';
outtextxy(x+30,y+40,emp);
}
else{
outtextxy(x+30,y+40,sum);
}
break;
case 32:
emp[0]='\0';
sum[0]='\0';
e=emp;
s=sum;
ch='0';
ch_z=0;
dian=0;
init();
break;
case 8:
delay(8000);
for(i=0;i<=79;i++){
if (emp[i]=='\0')
break;
}
if (i==0)
break;
if (i!=79&&i!=0){
i--;
emp[i]='\0';
e=&emp[i];
}
init();
outtextxy(x+30,y+40,emp);
break;
}
}
}
/*---------------------------------------------------------------------*/
void init(void){
int x, y, x1, y1, i, j;
char emp;
x = (getmaxx() / 2) - 120;
y = (getmaxy() / 2) - 150;
x1 = (getmaxx() / 2) + 120;
y1 = (getmaxy() / 2) + 150;
cleardevice();
setbkcolor(3);
setfillstyle(1, 15);
setcolor(15);
settextstyle(1,0,1);
rectangle (x, y, x1, y1);
rectangle (x - 7, y - 7, x1 + 7, y1 + 7);
rectangle (x + 10, y + 10, x1 - 10, y + 80 - 10);
line (x, y + 80, x1, y + 80);
y = y + 80;
for (j = 1; j <= 4; j++){
x = (getmaxx() / 2) - 120;
for (i = 1; i <= 4; i++){
/* bar (x + 10, y + 10, x + 60 - 10, y + 60 - 10);*/
rectangle(x + 10, y + 10, x + 60 - 10, y + 60 - 10);
if (j == 1){
if (i == 1)
outtextxy(x + 20, y + 20, "/");
if (i == 2)
outtextxy(x + 25, y + 20, "*");
if (i == 3)
outtextxy(x + 27, y + 20, "-");
if (i == 4)
outtextxy(x + 25, y + 20, "+");
}
if (j == 2){
if (i == 1)
outtextxy(x + 25, y + 20, "1");
if (i == 2)
outtextxy(x + 25, y + 20, "2");
if (i == 3)
outtextxy(x + 25, y + 20, "3");
if (i == 4)
outtextxy(x + 25, y + 20, "=");
}
if (j == 3){
if (i == 1)
outtextxy(x + 25, y + 20, "4");
if (i == 2)
outtextxy(x + 25, y + 20, "5");
if (i == 3)
outtextxy(x + 25, y + 20, "6");
if (i == 4)
outtextxy(x + 25, y + 20, ".");
}
if (j == 4){
if (i == 1)
outtextxy(x + 25, y + 20, "7");
if (i == 2)
outtextxy(x + 25, y + 20, "8");
if (i == 3)
outtextxy(x + 25, y + 20, "9");
if (i == 4)
outtextxy(x + 25, y + 20, "0");
}
x = x + 60;
}
y = y + 53;
}
}
/*---------------------------------------------------------------------*/
int getkey(){
char lowbyte;
int press;
while(bioskey(1)==0);
press = bioskey(0);
press = press&0xff? press&0xff: press>>8;
return(press);
}
double strtoflt(char *p)
{
double rtl=0.000000000000;
double pnt=0.000000000000;
double t = 10;
int ispoint = 0;
while (*p!='\0'||*p!='.'){
if(*p<'0'||*p>'9')
break;
rtl*=10;
rtl+=*p-'0';
p++;
}
if (*p=='.'){
ispoint=1;
p++;
}
while(ispoint&&*p!='\0'){
pnt+=(double)(*p-'0')/t;
t*=10;
p++;
}
rtl+=pnt;
return (rtl);
}
/*-----------------------------------------------------------------------*/
void clear_z(char u[]){
int i;
for(i=strlen(u)-1;i>=0;i--){
if (u[i]!='0')
break;
}
if (u[i]=='.'){
u[i]='\0';
}
else{
i++;
u[i]='\0';
}
}
B. 跪求c語言計數代碼
計數很簡單啊！可以用一個共用變數來計數，最好的是用多線程的方法，因為如果你文件太大了，程序在載入過程中就會卡主，多線程可以實時的顯示字元數
C. c語言數的計數
#include<stdio.h>
int fun(int n)
{int i,s=0;
for(i=1;i<=n/2;i++)
s+=1+fun(i);
return s;
}
int main()
{int n,i,s;
scanf("%d",&n);
s=1+fun(n);
printf("%d ",s);
return 0;
}
D. C語言編程：奧運獎牌計數 2008年北京奧運會，A國的運動員參與了n天的決賽項目(1≤n≤17)。
var n:1..17; a,b,c:array[1..17] of integer; i:1..17; aa,bb,cc,sum:integer; f:text;begin assign(f,'金銀銅牌.in'); reset(f); readln(f,n); for i:=1 to n do readln(f,a[i],b[i],c[i]); close(f); aa:=0; bb:=0; cc:=0; sum:=0; for i:=1 to n do begin aa:=aa+a[i]; bb:=bb+b[i]; cc:=cc+c[i]; end; sum:=aa+bb+cc; writeln(aa:3,bb:3,cc:3,sum:3);end.
E. 在c語言中比如輸出n個數 怎麼計數
#include "stdio.h"
int main()
{
char tab[10]="123456789";
int n=0;/*用來計數*/
int i=0;
while(tab[i])
{
i++;
n++;
}
printf("%d\n",n);
return 0;
}
F. C語言 字元計數
getchar()從鍵盤接收一個字元，當遇到讀錯誤時，返回EOF（在windows下，ctrl+z可得之）
所以，這個程序會統計從鍵盤上輸入的字元個數。