c语言基础复习
2013-03-09 17:57
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#include <stdio.h>
//声明pi＝3.14
#define PI 3.14
int main(int argc, const char * argv[])
{
/*
int a = 10;
int b;
b = 11;
//控制台输出
printf("a = %d\nb = %d",a,b);
float pi =3.14;
double pi_2 = 3.1415926;
printf("pi = %f\n pi_2 = %.2f",pi,pi_2);
//char
char d = 'a';
printf("d = %c,d = %d",d,d);
int count;
scanf("%d",&count);
printf("count = %d",count);
printf("count = %f",PI);
}
*/
int week = 5;
if (week<=5)
{
printf("上课");
}
else
{
printf("休息");
}
if (week == 1 || week == 3 || week == 5)
{
printf("上课");
}
else if (week == 2 || week == 4)
{
printf("上机");
}
else
{
printf("休息");
}
int a,b;
scanf("%d-%d",&a,&b);
if (a>=b)
{
printf("a = %d",a);
}
else
{
printf("b = %d",b);
}
//week匹配整数
week = 2;
switch (week)
{
case 1:
{
printf("周一\n");
break;
}
case 2:
{
printf("周二\n");
break;
}
case 3:
{
printf("周三\n");
break;
}
case 4:
{
printf("周四\n");
break;
}
case 5:
{
printf("周五\n");
break;
}
default:
{
printf("其他");
break;
}
}
//while循环
int i = 1,sum = 0;
while (i <= 10)
{
printf("i = %d\n",i);
sum = sum + i;
i++;
}
printf("sum = %d",sum);
//do while循环
i = 1;
sum = 0;
do{
sum += i;
i++;
}while (i <= 10);
printf("sum =%d",sum);
//for循环
i = 1;
sum = 0;
for (i =1; i<=10; i++)
{
sum += i;
}
printf("sum = %d",sum);
return 0;
}
#include <stdio.h>
//声明pi＝3.14
#define PI 3.14
int main(int argc, const char * argv[])
{
/*
int a = 10;
int b;
b = 11;
//控制台输出
printf("a = %d\nb = %d",a,b);
float pi =3.14;
double pi_2 = 3.1415926;
printf("pi = %f\n pi_2 = %.2f",pi,pi_2);
//char
char d = 'a';
printf("d = %c,d = %d",d,d);
int count;
scanf("%d",&count);
printf("count = %d",count);
printf("count = %f",PI);
}
*/
int week = 5;
if (week<=5)
{
printf("上课");
}
else
{
printf("休息");
}
if (week == 1 || week == 3 || week == 5)
{
printf("上课");
}
else if (week == 2 || week == 4)
{
printf("上机");
}
else
{
printf("休息");
}
int a,b;
scanf("%d-%d",&a,&b);
if (a>=b)
{
printf("a = %d",a);
}
else
{
printf("b = %d",b);
}
//week匹配整数
week = 2;
switch (week)
{
case 1:
{
printf("周一\n");
break;
}
case 2:
{
printf("周二\n");
break;
}
case 3:
{
printf("周三\n");
break;
}
case 4:
{
printf("周四\n");
break;
}
case 5:
{
printf("周五\n");
break;
}
default:
{
printf("其他");
break;
}
}
//while循环
int i = 1,sum = 0;
while (i <= 10)
{
printf("i = %d\n",i);
sum = sum + i;
i++;
}
printf("sum = %d",sum);
//do while循环
i = 1;
sum = 0;
do{
sum += i;
i++;
}while (i <= 10);
printf("sum =%d",sum);
//for循环
i = 1;
sum = 0;
for (i =1; i<=10; i++)
{
sum += i;
}
printf("sum = %d",sum);
return 0;
}
//声明pi＝3.14
#define PI 3.14
int main(int argc, const char * argv[])
{
/*
int a = 10;
int b;
b = 11;
//控制台输出
printf("a = %d\nb = %d",a,b);
float pi =3.14;
double pi_2 = 3.1415926;
printf("pi = %f\n pi_2 = %.2f",pi,pi_2);
//char
char d = 'a';
printf("d = %c,d = %d",d,d);
int count;
scanf("%d",&count);
printf("count = %d",count);
printf("count = %f",PI);
}
*/
int week = 5;
if (week<=5)
{
printf("上课");
}
else
{
printf("休息");
}
if (week == 1 || week == 3 || week == 5)
{
printf("上课");
}
else if (week == 2 || week == 4)
{
printf("上机");
}
else
{
printf("休息");
}
int a,b;
scanf("%d-%d",&a,&b);
if (a>=b)
{
printf("a = %d",a);
}
else
{
printf("b = %d",b);
}
//week匹配整数
week = 2;
switch (week)
{
case 1:
{
printf("周一\n");
break;
}
case 2:
{
printf("周二\n");
break;
}
case 3:
{
printf("周三\n");
break;
}
case 4:
{
printf("周四\n");
break;
}
case 5:
{
printf("周五\n");
break;
}
default:
{
printf("其他");
break;
}
}
//while循环
int i = 1,sum = 0;
while (i <= 10)
{
printf("i = %d\n",i);
sum = sum + i;
i++;
}
printf("sum = %d",sum);
//do while循环
i = 1;
sum = 0;
do{
sum += i;
i++;
}while (i <= 10);
printf("sum =%d",sum);
//for循环
i = 1;
sum = 0;
for (i =1; i<=10; i++)
{
sum += i;
}
printf("sum = %d",sum);
return 0;
}
#include <stdio.h>
//声明pi＝3.14
#define PI 3.14
int main(int argc, const char * argv[])
{
/*
int a = 10;
int b;
b = 11;
//控制台输出
printf("a = %d\nb = %d",a,b);
float pi =3.14;
double pi_2 = 3.1415926;
printf("pi = %f\n pi_2 = %.2f",pi,pi_2);
//char
char d = 'a';
printf("d = %c,d = %d",d,d);
int count;
scanf("%d",&count);
printf("count = %d",count);
printf("count = %f",PI);
}
*/
int week = 5;
if (week<=5)
{
printf("上课");
}
else
{
printf("休息");
}
if (week == 1 || week == 3 || week == 5)
{
printf("上课");
}
else if (week == 2 || week == 4)
{
printf("上机");
}
else
{
printf("休息");
}
int a,b;
scanf("%d-%d",&a,&b);
if (a>=b)
{
printf("a = %d",a);
}
else
{
printf("b = %d",b);
}
//week匹配整数
week = 2;
switch (week)
{
case 1:
{
printf("周一\n");
break;
}
case 2:
{
printf("周二\n");
break;
}
case 3:
{
printf("周三\n");
break;
}
case 4:
{
printf("周四\n");
break;
}
case 5:
{
printf("周五\n");
break;
}
default:
{
printf("其他");
break;
}
}
//while循环
int i = 1,sum = 0;
while (i <= 10)
{
printf("i = %d\n",i);
sum = sum + i;
i++;
}
printf("sum = %d",sum);
//do while循环
i = 1;
sum = 0;
do{
sum += i;
i++;
}while (i <= 10);
printf("sum =%d",sum);
//for循环
i = 1;
sum = 0;
for (i =1; i<=10; i++)
{
sum += i;
}
printf("sum = %d",sum);
return 0;
}
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