c语言基础知识必背有哪些？
c语言基础知识必背有1、c语言的命名;2、变量及赋值;3、基本数据类型;4、格式化输出语句;5、强制类型转换;6、常量;7、自动类型转换。
C语言要背哪些？
单独记死的没用，边学边用，学到哪了不懂再去看，如果有一定的英语基础，学起来就容易多了，应为里面的函数构造都是英语单词的缩写或简称，多加练习去编译器编写，时间长了自然的就记住了，但不能记死的，要懂得举一反三。
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);
}
c语言写1-100的代码 。。最简单的。不要函数那些
是输出从1到100吗？
#include stdio.h
void main()
{
int i;
for(i=1;i=100;i++) /*i从1循环到100*/
{
printf("%2d,",i); /*输出i*/
if(i%5==0) printf("\n"); /*每5个换行*/
}
}
c语言100行简单一点的代码
登录幼儿园200个小朋友的数据：姓名、性别、年龄、身高、体重、出生日期，分别按年龄排序后输出。
#includestdio.h
#define N 200
struct child
{
char name[10];
char sex[3];
int age;
int height;
float weight;
struct {
int year;
int month;
int day;
}bdate;
}ch[N];
void input()
{
int i;
for(i=0;iN;i++)
{
printf("\n请输入第%d名小朋友信息：\n",i+1);
printf("姓名：");
scanf("%s",ch[i].name);
printf("性别：");
scanf("%s",ch[i].sex);
printf("年龄：");
scanf("%d",ch[i].age);
printf("身高：");
scanf("%d",ch[i].height);
printf("体重：");
scanf("%f",ch[i].weight);
printf("出生日期[YYYY-MM-DD]：");
scanf("%d-%d-%d",ch[i].bdate.year,ch[i].bdate.month,ch[i].bdate.day);
}
}
void sort()
{
struct child ct;
int i,j;
for(i=0;iN-1;i++)
for(j=0;jN-i-1;j++)
if(ch[j].heightch[j+1].height)
{
ct=ch[j];
ch[j]=ch[j+1];
ch[j+1]=ct;
}
}
void output()
{
int i;
printf("\n\t幼儿园小朋友一览（依身高排序）\n");
printf("===================================================\n");
printf(" 姓名 性别 年龄 身高 体重 出生日期 \n");
printf("===================================================\n");
for(i=0;iN;i++)
printf(" %-8s %-2s %2d %d %3.1f %d.%d.%d\n",ch[i].name,ch[i].sex,ch[i].age,ch[i].height,ch[i].weight,ch[i].bdate.year,ch[i].bdate.month,ch[i].bdate.day);
}
void main()
{
input();
sort();
output();
}
高分悬赏求一个C语言100行左右的程序代码，希望有详细的注释，在线等！
#include errno.h
#include unistd.h
#include sys/ioctl.h
#include sys/types.h
#include sys/mman.h
#include sys/stat.h
#include fcntl.h
#include linux/fb.h
#include "xorg-server.h"
#include "xf86.h"
#include "xf86cmap.h"
#include xf86drm.h
#include "xf86xv.h"
#include "xf86Crtc.h"
#include "micmap.h"
#include "mali_def.h"
#include "mali_fbdev.h"
#include "mali_exa.h"
#include "mali_dri.h"
#include "mali_lcd.h"
#include "compat-api.h"
#define MALI_VERSION 4000
#define MALI_NAME "MALI"
#define MALI_DRIVER_NAME "mali"
#define PAGE_MASK (~(getpagesize() - 1))
static const OptionInfoRec *MaliAvailableOptions(int chipid, int busid);
static void MaliIdentify(int flags);
static Bool MaliProbe(DriverPtr drv, int flags);
static Bool MaliPreInit(ScrnInfoPtr pScrn, int flags);
static Bool MaliScreenInit(SCREEN_INIT_ARGS_DECL);
static Bool MaliCloseScreen(CLOSE_SCREEN_ARGS_DECL);
static Bool MaliHWSwitchMode(SWITCH_MODE_ARGS_DECL);
static void MaliHWAdjustFrame(ADJUST_FRAME_ARGS_DECL);
static Bool MaliHWEnterVT(VT_FUNC_ARGS_DECL);
static void MaliHWLeaveVT(VT_FUNC_ARGS_DECL);
static ModeStatus MaliHWValidMode(SCRN_ARG_TYPE arg, DisplayModePtr mode, Bool verbose, int flags);
static int pix24bpp = 0;
static int malihwPrivateIndex = -1;
static int global_drm_fd = -1;
_X_EXPORT DriverRec MALI =
{
MALI_VERSION,
MALI_DRIVER_NAME,
MaliIdentify,
MaliProbe,
MaliAvailableOptions,
NULL,
0,
NULL,
NULL,
NULL,
};
/* Supported "chipsets" */
static SymTabRec MaliChipsets[] =
{
{ 0, "mali" },
{ -1, NULL }
};
/* Supported options */
typedef enum
{
OPTION_DRI2,
OPTION_DRI2_PAGE_FLIP,
OPTION_DRI2_WAIT_VSYNC,
OPTION_UMP_CACHED,
OPTION_UMP_LOCK,
} FBDevOpts;
static const OptionInfoRec MaliOptions[] =
{
{ OPTION_DRI2, "DRI2", OPTV_BOOLEAN, {0}, TRUE },
{ OPTION_DRI2_PAGE_FLIP, "DRI2_PAGE_FLIP", OPTV_BOOLEAN, {0}, FALSE },
{ OPTION_DRI2_WAIT_VSYNC, "DRI2_WAIT_VSYNC", OPTV_BOOLEAN, {0}, FALSE },
{ OPTION_UMP_CACHED, "UMP_CACHED", OPTV_BOOLEAN, {0}, FALSE },
{ OPTION_UMP_LOCK, "UMP_LOCK", OPTV_BOOLEAN, {0}, FALSE },
{ -1, NULL, OPTV_NONE, {0}, FALSE }
};
#ifdef XFree86LOADER
#ifndef PACKAGE_VERSION_MAJOR
#define PACKAGE_VERSION_MAJOR 0
#endif
#ifndef PACKAGE_VERSION_MINOR
#define PACKAGE_VERSION_MINOR 1
#endif
#ifndef PACKAGE_VERSION_PATCHLEVEL
#define PACKAGE_VERSION_PATCHLEVEL 1
#endif
MODULESETUPPROTO(MaliSetup);
static XF86ModuleVersionInfo MaliVersRec =
{
"mali",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
PACKAGE_VERSION_MAJOR, PACKAGE_VERSION_MINOR, PACKAGE_VERSION_PATCHLEVEL,
ABI_CLASS_VIDEODRV,
ABI_VIDEODRV_VERSION,
NULL,
{0, 0, 0, 0}
};
C语言入门必学代码
百度搜C语言经典100例。
想学好的话，就多写，多读，多分析，多思考，会有帮助的。
c语言必背代码有哪些？
c语言必背代码：
求最大公约数的代码
求最小公倍数的代码
求1到100的和的代码
九九乘法表
一维数组的最大值、最小值和平均值
二维数组的最大值、最小值和平均值
二维数组的转置
