// 源文件后面必须使.c才能代码运行成功
/*
int main()
{
printf("he\n");
return 0;
}
#include <stdio.h>
//求两个整数之和
int main()
{
int a, b, sum; //本行使程序的声明部分。定义a,b,sum为整型变量
a = 123; //对变量a进行赋值
b = 456; //对变量b进行赋值
sum = a + b;
printf("sum is %d \n", sum);
return 0;
}
*/
/*
//#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
int max(int x, int y); //对调用函数max的声明
int a, b, c;
scanf_s("%d,%d", &a, &b); // 输入变量a和b的值
c = max(a, b); // 调用max函数,将得到的值赋给c
printf("max=%d/n", c);
return 0;
}
int max(int x, int y)
{
int z;
if (x > y)z = x;
else z = y;
return 0;
}
#include <stdio.h>
int main()
{
printf("Hello,world\n");
return 0;
}
// 习题1. 编写一个“hello world”
#include <stdio.h>
int main()
{
printf("*************\n\n");
printf("holle world\n\n");
printf("*************\n");
return 0;
}
// 2.编写一个c程序,输入a,b,c三个值,输出其中最大的值
#include <stdio.h>
int main()
{
int a, b, c, max; //定义变量a,b,c
printf("please input a,b,c:\n");
scanf("%d,%d,%d,&a,&b,&c"); //输入变量a,b,c的值
max = a;
if (max < b)
max = b;
if (max < c)
max = c;
printf("The largest number is %d\n", max);
return 0;
}
// C语言写算法
#include <stdio.h>
int main()
{
int i, t;
t = 1;
i = 2;
while (i < 5)
{
t = t * i;
i = i + 1;
}
printf("%d\n", t);
return 0;
}
// N-S
#include <stdio.h>
int main()
{
float f, c; //float定义f,c为单精度浮点数型变量
f = 64.0;
c = (5.0 / 9) * (f - 32);
printf("f=%f\nc=%f\n,f,c");
return 0;
}
// 有1000元,需要存一年,有3种方法:(活期,年利率为r1)(一年定期,年利率r2)(存两次半年定期,年利率r3)
// 计算出一年后按3种方法所得到的本息和
#include <stdio.h>
int main()
{
float p0 = 1000, r1 = 0.036, r2 = 0.0225, r3 = 0.0198, p1, p2, p3;
p1 = p0 * (1 + r1);
p2 = p0 * (1 + r2);
p3 = p0 * (1 + r3/2) * (1+r3/2);
printf("p1 = %f\np2 = %f\np3 = %f\n",p1,p2,p3);
return 0;
}
//
#include <stdio.h>
int main()
{
double a, b, c, s, area; //定义各变量,为双精度浮点数
a = 3.67;
b = 5.43;
c = 6.21;
s = (a + b + c) / 2;
area = sqrt(s*(s - a)*(s - b)*(s - c));
printf("a=%f\tb=%f\tc=%f\n", a, b, c);
printf("area=%f\n", area);
return 0;
}
*/