求写一个简单的c语言代码，要最简单的那种。谢谢
我帮你写个简单点的吧，你这个是5位还好，要是位数更多呢，呵呵，
#include
void
main()
{
int
x,n=0;
printf("input
x:");
scanf("%d",x);
if(x=0)
printf("error!");
else
while(x)
{x/=10;
n++;}
printf("这是一个%d位数。\n",n);
}
求简单C语言程序代码！
小游戏2048源码：
#includestdio.h
#includestdlib.h
#includeconio.h
#includetime.h
#includewindows.h
int jsk( ); //计算空格数
void rsgm( ); //重置游戏
void inkey( ); //按键输入
void left( ); //向左移动
void right( ); //向右移动
void up( ); //向上移动
void down( ); //向下移动
void show( ); //输出界面
void adnum( ); //添加随机数
void yes( ); //游戏是否结束(1是0否)
void gtxy(int x, int y); //控制光标位置的函数
int a[4][4]; //存储16个格子中的数字
int score = 0; //每局得分
int best = 0; //最高得分
int ifnum; //是否需要添加数字(1是0否)
int over; //游戏结束标志(1是0否)
int i,j,k;
int main( )
{ rsgm( ); //重置游戏
inkey( ); //按键输入
return 0;
}
void setColor(unsigned short ForeColor = 7, unsigned short BackGroundColor = 0)
{ HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(handle, ForeColor + BackGroundColor * 0x10);
} //用于控制字符颜色的函数
void rsgm( ) //重置游戏
{ score = 0; ifnum = 1; over = 0; srand((unsigned)time(0)); //启动随机数发生器
int n = rand( ) % 16; //随机函数产生0-15的数字
for (i = 0; i 4; i++)
{for (j = 0; j 4; j++)
{ if (n == 0) { int k = rand( ) % 3; if (k == 0 || k == 1) { a[i][j] = 2; }
else { a[i][j] = 4; } n--; }
else { a[i][j] = 0; n--; }
}
}
adnum( );
system("cls");
CONSOLE_CURSOR_INFO cursor_info={1,0}; //以下两行是隐藏光标的设置
SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE),cursor_info);
setColor(14, 0); //设置字体淡红色，背景为黑色
printf("\n\n\t\t 2048小游戏"); setColor(7, 0); //恢复白字黑底
printf("\n\t┌──────┬──────┬──────┬──────┐");
printf("\n\t│ │ │ │ │");
printf("\n\t├──────┼──────┼──────┼──────┤");
printf("\n\t│ │ │ │ │");
printf("\n\t├──────┼──────┼──────┼──────┤");
printf("\n\t│ │ │ │ │");
printf("\n\t├──────┼──────┼──────┼──────┤");
printf("\n\t│ │ │ │ │");
printf("\n\t└──────┴──────┴──────┴──────┘");
show( );
}
void show( ) //输出界面
{ for(i=0;i4;i++)
for(j=0;j4;j++)
{ gtxy(7*j+9,2*i+4); //gtxy(7*j+9, 2*i+4)是光标到指定位置输出数字
if(a[i][j]==0){printf(" "); setColor(7, 0); printf("│");}
else if(a[i][j]10){ if (a[i][j] == 2) {setColor(14, 0); }
else if (a[i][j] == 4) {setColor(13, 0); }
else if (a[i][j] == 8) {setColor(12, 0); }
printf(" %d ", a[i][j]); setColor(7, 0); printf("│");
}
else if (a[i][j] 100){if (a[i][j] == 16) {setColor(12, 0); }
else if (a[i][j] == 32) {setColor(10, 0); }
else if (a[i][j] == 64) {setColor(2, 0); }
printf(" %d ", a[i][j]); setColor(7, 0); printf("│");
}
else if (a[i][j] 1000) {if (a[i][j] == 128) {setColor(9, 0); }
else if (a[i][j] == 256) {setColor(1, 0); }
else if (a[i][j] == 512) {setColor(13, 0); }
printf(" %d ", a[i][j]); setColor(7, 0); printf("│");
}
else if (a[i][j] 10000) {if (a[i][j] == 1024) {setColor(5, 0); }
else {setColor(15, 0); }
printf(" %d ", a[i][j]); setColor(7, 0); printf("│");
}
}
if (jsk( ) == 0)
{ yes( ); if (over) { gtxy(9,12); setColor(10, 0);
printf("\n\n 游戏结束！是否继续? [ Y/N ]:"); }
}
}
void inkey( ) //按键输入
{ int key;
while (1)
{ key = getch( );
if (over) { if (key == 89|| key == 121) {rsgm( ); continue; }
else if (key == 78|| key == 110) { return; }
else continue; }
ifnum = 0;
if(key==224)key=getch( );
switch (key)
{ case 75: left( ); break;
case 77: right( ); break;
case 72: up( ); break;
case 80: down( );break;
}
if (score best) { best = score; }
if (ifnum) { adnum( ); show( ); }
}
}
int jsk( ) //计算空格数
{ int n = 0;
for (i = 0; i 4; i++)
{ for (j = 0; j 4; j++) { if ( a[i][j] == 0) {n++;} } }
return n;
}
void left( ) //向左移动
{ for (i = 0; i 4; i++)
{for (j = 1, k = 0; j 4; j++)
{ if (a[i][j] 0)
{ if ( a[i][k] == a[i][j])
{ a[i][k] *= 2; k++;
score = score + 2 * a[i][j];
a[i][j] = 0; ifnum = 1; }
else if ( a[i][k] == 0) { a[i][k] = a[i][j]; a[i][j] = 0; ifnum = 1; }
else { a[i][k + 1] = a[i][j]; if ((k + 1) != j) { a[i][j] = 0; ifnum = 1; }
k++; }
}
}
}
}
void right( ) //向右移动
{for (i = 0; i 4; i++)
{for (j = 2, k = 3; j = 0; j--)
{if (a[i][j] 0)
{ if (a[i][k] == a[i][j])
{a[i][k] *= 2; k--; score = score + 2 * a[i][j]; a[i][j] = 0; ifnum = 1; }
else if ( a[i][k] == 0) {a[i][k] = a[i][j]; a[i][j] = 0; ifnum = 1; }
else { a[i][k - 1] = a[i][j]; if ((k - 1) != j) { a[i][j] = 0; ifnum = 1; } k--; }
}
}
}
}
void up( ) //向上移动
{for (i = 0; i 4; i++)
{for (j = 1, k = 0; j 4; j++)
{if (a[j][i] 0)
{if ( a[k][i] == a[j][i]) { a[k][i] *= 2; k++;score = score + 2 * a[j][i];
a[j][i] = 0; ifnum = 1; }
else if ( a[k][i] == 0) { a[k][i] = a[j][i]; a[j][i] = 0; ifnum = 1; }
else { a[k + 1][i] = a[j][i]; if ((k + 1) != j) { a[j][i] = 0; ifnum = 1; }
k++; }
}
}
}
}
void down( ) //向下移动
{ for (i = 0; i 4; i++)
{for (j = 2, k = 3; j = 0; j--)
{if (a[j][i] 0)
{if (a[k][i] == a[j][i])
{a[k][i] *= 2; k--;score = score + 2 * a[j][i]; a[j][i] = 0; ifnum = 1; }
else if (a[k][i] == 0) {a[k][i] = a[j][i]; a[j][i] = 0; ifnum = 1; }
else {a[k - 1][i] = a[j][i];
if ((k - 1) != j) {a[j][i] = 0; ifnum = 1; } k--; }
}
}
}
}
void adnum( ) //添加随机数
{ srand(time(0)); //启动随机数发生器
int n = rand( ) % jsk( );
for (int i = 0; i 4; i++)
{for (int j = 0; j 4; j++)
{ if (a[i][j] == 0) { if (n != 0) { n--; }
else {int k = rand() % 3;
if (k == 0 || k == 1) {a[i][j] = 2; return; }
else {a[i][j] = 4; return; } }
}
}
}
}
void yes( ) //游戏是否结束
{ for (int i = 0; i 4; i++)
{for (int j = 0; j 3; j++)
{if (a[i][j] == a[i][j + 1] || a[j][i] == a[j + 1][i]) {over = 0; return; }}
}
over = 1;
}
void gtxy(int x, int y) //控制光标位置的函数
{ COORD coord;
coord.X = x;
coord.Y = y;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}
写一个简短的C语言代码
#include stdio.h
int main()
{
double a,b,c;
scanf("%lf",a);
scanf("%lf",b);
c=a+b;
printf("first number:%.2lf",a);
printf("\nsecond number%.2lf",b);
printf("\n\t%.2lf",a);
printf("\n+\t%.2lf",b);
printf("\n-------------\n");
printf(" %.2lf\n",c);
return 0;
}
最简单的C语言程序是什么？
在屏幕上输出 “This is a C program。”
#include//这是编译预处理指令
int main() //定义主函数
{ //函数开始的标志
printf ("This is a C program。\n");//输出所指定的一行信息
return 0; //函数执行完毕之后返回函数值0
} //函数结束的标志。
C语言是一门通用计算机编程语言，应用广泛。C语言的设计目标是提供一种能以简易的方式编译、处理低级存储器、产生少量的机器码以及不需要任何运行环境支持便能运行的编程语言。
求很简单3个C语言代码，参考
1.
#includestdio.h
void
main()
{
double
num1
=
0,
num2
=
0;
printf("请输入两个实数:");
scanf("%lf%lf",
num1,
num2);//输入时以空格隔开2个数
printf("他们的和是%lf,他们的积是%lf\n",num1+num2,num1*num2);
}
2.
#includestdio.h
void
main()
{
int
i
=
2,
sum
=
0;
for(;
i
102;
sum
+=
i,
i
+=
2);
printf("2+4+6+...+100
=
%d\n",
sum);
}
3.
#includestdio.h
void
main()
{
int
num1
=
0,
num2
=
0,
num3
=
0;
int
min
=
num1;
printf("请输入3个整数:");
scanf("%d%d%d",
num1,
num2,
num3);
if(min
num2)
min
=
num2;
if(min
num3)
min
=
num3;
printf("最小数是
%d\n",
min);
}