一些简单的C语言程序代码.docxVIP

由键盘任意输入1个4位数整数，分别输出其中的个位、十位、百位、千位。/* expe 3-10 */#include #include void main(void) int mun,a,b,c,d; scanf(%d,&mun); a=mun / 1000; /*千位*/ b=(mun % 1000) / 100; /*百位*/ c=(mun % 100) / 10; /*十位*/ d=(mun % 10); /*个位*/ printf(千位数字为=%dn,a); printf(百位数字为=%dn,b); printf(十位数字为=%dn,c); printf(个位数字为=%dn,d);由键盘任意输入3个数据，找出其中的最大数和最小数。#includevoid main(void) float a,b,c,k,g;/* k 小 g 大*/ printf (请输入三个数); scanf(%f%f%f,&a,&b,&c); if (a b) k = a; g = b; else k = b; g = a; if (k c)/*最大*/ printf (n最大的数=%5.2f,g); else printf (n最大的数=%5.2f,c); 判断三角形的形状#include#includevoid main(void) printf(请输入三角形三边); float a,b,c,p,s,k1,k2,k3; scanf(%f%f%f,&a,&b,&c); while (a + b c | b + c a | a + c b ) printf(不能构成三角形，请重新输入); scanf(%f%f%f,&a,&b,&c); k1 = a * a; k2 = b * b; k3 = c * c; if (a = b & b = c & c =a) printf(此三角形为等边三角形); else if (a = b | b = c | c =a) printf(此三角形为等腰三角形); else if (k1 = b * b + c * c) | (k2 = a * a + c * c) | (k3 = a * a + b * b) printf(此三角形为直角三角形); else printf(此三角形为一般三角形); 九九乘法表整体#include void main(void) int i,j; for (i = 1;i 10; i +) for(j = 1;j 10; j +)printf(%5d,i * j); printf(n); 右半边#include void main(void) int i,j; for (i = 1;i 10; i +) for(j = 1;j = i; j +) printf(%5d,i * j); printf(n); 左半边#include void main(void) int i,j; for (i = 1;i 10;i +)/*最外层循环*/ for (j = 1;j i; j+)/*打空格*/ printf( ); for (j = 1;j = 10 - i;j +)/*计算*/ printf(%5d,j * i); printf(n); 打印菱形#includevoid main(void) int i,j,k; for (i = 1;i = 5;i +) for (j = 0;j 5 - i;j +) printf( ! ); for (k = 1;k = 0;i -) for (j = 4 - i;j 0;j -) printf( ! ); for (k = 2 * i ;k = 0;k -) printf( * ); printf(n); 找回文#include#includevoid main(void) char str80; int i,j,iStrlenstr,iFlag; printf(请输入字符串n); gets(str); iStrlenstr = strlen(str); for (i = 0 ,j = iStrlenstr - 1;i = j ;i +, j -) if (stri = strj) iFlag = 1; else iFlag = 0;break; if (iFlag = 1) printf(输入的是回文！n); else printf(输入的不是回文！n); 找名字指针法/*不用查找函数，用指针的方法*/#includevoid main(void) char str1080,a80,*p10,*q = NULL; int i, j,iFlag = 0;/ int istrlenstr; printf(请输入名字n); for ( i = 0 ; i 10; i +) gets(stri); printf(请输入想查找的名字n); gets(a);for (i = 0; i 10; i +)pi = stri; q = a; for (i = 0; i 10; i + ) iFlag = 0; j = 0; while(*(pi + j) & *(q + j) if (*(pi+ j) != *(q + j) break; j+; if (*(pi + j)= 0 & *(q + j) = 0) iFlag = 1;break; if (iFlag = 1) printf(FOUND ! 该名字的位置为%d,i); else printf(NOT FOUND ！); /*利用指针给10个数排序*/#includeint main(void) int a10,*p = NULL ,iTem; int i,j,iPos = 0; printf(请输入10个数n); for (i = 0; i 10; i +) scanf(%d,&ai); p = a; for(i = 0; i 9; i +) iPos = i; for (j = i + 1 ; j 10 ;j +) if (aj aiPos) iPos = j; iTem = *(a + i); *(a + i) = *(a + iPos); *(a + iPos) = iTem; printf(排序之后的为); for (i = 0; i 10; i +) printf(%4d,*(a + i); return 0; /*名字排序，从大到小*/#include#includevoid main(void)char a1010,cTemp10;int i,j,iMax;printf(输入十个学生姓名：n);for(i = 0; i 10; i +)gets(ai);for(i = 0;i 10 ;i +)iMax = i;for(j = i + 1;j 10;j +) if(strcmp(aiMax,aj) 0)iMax = j;if(iMax != i)strcpy(cTemp,ai);strcpy(ai,aiMax);strcpy(aiMax,cTemp);printf(按照字典降序排序为：n);for(i = 0;i 10;i +)puts(ai); /*查找并删除某字符*/#includeint main() char str80,*p = NULL,*q; char t; printf(请输入字符串:n); gets(str); printf(请输入想要删除的字符:n); t = getchar(); p = str; q = str; for (p = str; *p != 0; p +) if (*p != t) *q+ = *p; *q = 0; puts(str);函数作业（全部）/*交换器，引用全局变量*/方法一int a,b;void main(void) scanf(%d%d,&a,&b); fun(); printf(a=%d,b=%dn,a,b);void fun(void) int c; c = a; a = b; b = c;方法二#include#define swap(x,y) int tmp=x;x=y;y=tmp;int main() int x,y; printf(请输入两个数字n); scanf(%d%d,&x,&y); swap(x,y); printf(交换之后的数字是n); printf(%dt%dt,x,y); return 0;/*用函数找最大公约数*/#includeint maxd(int,int);int main() int a,b,d; printf(请输入两个整数n); scanf(%d%d,&a,&b); d = maxd(a,b); printf(这两个数的最大公约数为：%d,d); return 0;int maxd(int a,int b) int m,n,k; if(ab) m = b;n = a; else m = a;n = b; do k = m%n; m = n; n = k; while(n != 0);return(m);/*用函数统计*/#includeint icount(char* );int main() char str80; int m = 0; printf(请输入字符串n); gets(str); m = icount(str); printf(字符串中数字的个数有：%d,m); return 0;int icount(char *p) int k = 0; while( *p != /0) if (*p = 0 & *p = 9) k +; return k;/*排序函数*/#include#includevoid iSort (int,int);int main() int a10; int i; printf(请输入10个整数n); for (i = 0; i 10 ; i +) scanf(%d,&ai); iSort(a,10); printf(从小到大排序为n); for (i = 0; i 10; i +) printf(%4d,ai); void iSort(int x,int n) int i,j,t,iPos; for (i = 0; i n - 1; i +) iPos = i; for (j = i + 1; j n; j +) if (xj xiPos) iPos = j ; if (iPos != i) t = xi; xi = xiPos; xiPos = t; /*用函数找素数*/#includeint iPrime(int);int main() int i,k = 0; for (i = 1; i 201; i += 2) k = iPrime(i); if (k = 1) printf(%dn,i); int iPrime(int x) int a; for (a = 2; a = x/2; a +) if (x % a = 0) return 0; return 1; /*八进制转十进制*/#includeint iChange(char*);int main() char s10; int i,k; printf(请输入一个八进制的数); gets(s); k = iChange(s); printf(对应的十进制的数位=%d,k);int iChange(char *x) char *p; int n = 0; p = x; for(;*p != 0; p +) n = n * 8 + *p - 0; /*用函数将矩阵转置规定是方阵*/#includevoid change(int4);int main() int a44,b44=0; int i,j; printf(请输入一个四阶矩阵n); for (i = 0; i 4; i +) for (j = 0; j 4 ;j +) scanf(%d,&aij); change(a); printf(转置过后的矩阵式n); for (i = 0; i 4; i +) for (j = 0; j 4 ;j +) printf(%3d,aij); printf(n); void change(int x4) int i,j,t; for (i = 0;i 4; i +) for (j = 0; j i; j +) t = xij;xij = xji;xji = t; /*判断是否是对称矩阵以 4*4 的矩阵为例*/#includeint dui(int4);int main() int a44,i,j,k = 0; printf(请输入一个四阶矩阵n); for (i = 0; i 4; i +) for (j = 0; j 4 ;j +) scanf(%d,&aij); k = dui(a); if (k = 1) printf(该矩阵为对称矩阵); else printf(该矩阵不是对称阵);int dui(int x4) int i,j,t = 0; for (i = 0;i 4; i +) for (j = 0; j i; j +) if (xij = xji) t = 1; return t;/*用函数求cos与sin*/#include#includefloat icos(float);float isin(float);int main() float a,cosx,sinx; printf(请输入xn); scanf(%f,&a); cosx = icos(a); sinx = isin(a); printf(cos(x)=%7.2fn,cosx); printf(sin(x)=%7.2fn,sinx);float icos(float a) int n = 2; float t,k,fcos; k = 0; t = 1; do t *= (-1) * a * a / (n *( n - 1); k += t; n += 2; while (fabs(t) = 1e-6); fcos = 1 + k; return fcos;float isin(float a) float fsin; fsin=sqrt(1 - (double)icos(a) * (double)icos(a); return fsin; /*int n = 3; float t,k,fsin; k = 0; t = 1; do t *= (-1) * a * a / (n * (n - 1); k += t; n += 2; while (fabs(t) = 1e-6); fsin =1 + k; return fsin;*/*用函数分别统计26个字母的个数*/#includevoid jishu(char str);int iCount126 = 0;void main(void) char str80; int i; printf(请输入字符串); gets(str); jishu(str); printf(26个大写字母的个数分别是n); for (i = 0; i = A & xi = Z) iCount1xi - A +; 位运算/*地位字节按位取反*/#includevoid main(void) unsigned int x; printf(请输入数据：); scanf(%d,&x); x = x 0X00ff; printf(%xn,x);/*循环移位通过位或运算来实现循环的功能*/#includevoid main(void)int a,n;printf(请输入一个整数：n);scanf(%d,&a);printf(请输入移动的位数：n);printf(注意：正数代表右移，负数代表左移);scanf(%d,&n);if(n 0)a = (a n) | (a (8 * sizeof(int) - n);/右移if(n 0)a = (a (8 * sizeof(int) - (- n);/左移printf(%un,a);/*利用位异或运算加密*/#includeint main() int stc,code,dst; dst = 0;/加密后 code = 1234;/密码 printf(请输入明文：n); scanf(%d,&stc); dst = stc code; printf(n加密之后的文件是：%dn,dst); return 0;/*偶数为清零*/#includevoid main(void) int a; printf(请输入); scanf(%d,&a); a = a & 0x5555; printf(%xn,a);/*十六进制转二进制*/#includevoid main(void) int a,b32,c = 1,i; scanf(%x,&a); for(i = 0; i i; c = 0; i -) printf(%d,bi); 员工工资#include#define N 1struct manlong ch;char nam10;int year;float fareJB;float fareYJ;float fareYF;float fareBX;float fareSD;float fareSF;void fare(struct man *p)struct man *q;for(q=p;qfareYF=p-fareJB+p-fareYJ;q-fareSF=q-fareYF-q-fareBX-q-fareSD;for(q=p;qfareYF,q-fareSF); void PRINTF(struct man *p)struct man *q=p;printf(职工工号t姓名t年龄t基本工资t业绩工资t应发工资t保险费tt水电费 t实发工资 tn);for(q=p;qch,q-nam,q-year,q-fareJB,q-fareYJ,q-fareYF,q-fareBX,q-fareSD,q-fareSF); void main(void)struct man personN,*per;printf(输入员工信息);for(per=person;pernam);scanf(%d%d%f%f%f%f,&per-ch,&per-year,&per-fareJB,&per-fareYJ,&per-fareBX,&per-fareSD); fare(person); PRINTF(person);部门销售情况管理程序#include#define N 1struct bumenlong num;char name20;float get4;float ave;aN;void chazhao(struct bumen *p)long NUM;int i;printf(输入要查找的部门的代码:); scanf(%ld,&NUM);printf(n);for(i=0;inum=NUM)break;printf(部门代码t部门名称t春季销售额t夏季销售额t秋季销售额t冬季销售额t平均值n);printf(%ldt %6stt%8.2lft%8.2lft%8.2lft%8.2lft%8.2lftn ,p-num,p-name,p-get0,p-get1,p-get2,p-get3,p-ave);void qiuave(struct bumen *p)int i,j;float sum=0;for(i=0;iN;i+)for(j=0;j4;j+)sum=sum+pi.getj;pi.ave=sum/4; void order(struct bumen *p)struct bumen *min,P;int i,j,k;for(i=0;iN-1;i+)min=πfor(j=i+1;jN;j+)if(pj.aveave)min=&pj;P=pi;pi=*min;*min=P;printf(部门代码t部门名称t春季销售额t夏季销售额t秋季销售额t冬季销售额t平均值n);for(k=0;kN;k+)printf(%ldt %6stt%8.2lft%8.2lft%8.2lft%8.2lft%8.2lftn ,pk.num,,pk.get0,pk.get1,pk.get2,pk.get3,pk.ave);void main(void)int i,j,n,x;float t;printf(输入部门数据);for(i=0;iN;i+)scanf(%ld,&ai.num);scanf(%s,&);for(j=0;j4;j+)scanf(%f,&t);ai.getj=t;printf(1.输入部门代码或部门名称，查找此部门的销售情况n2.计算各部门的平均销售额。n3.将销售情况表按各部门的平均销售额由高到低排序n);for(x=0;x3;x+)printf(输入调用的函数序号:);scanf(%d,&n);printf(n); switch(n) case 1:chazhao(a);break; case 2:qiuave(a);break; case 3:order(a);break; 链表/*与链表相关*/#include#include#define SIZE sizeof(struct Note)struct Note int value; struct Note *pNext;/*原型声明*/struct Note * Creatlist(void);int Traverlist(struct Note * );int searchlist(struct Note * ,int);int Deletelist(struct Note *,int);void Printlist(struct Note * );/*-主函数-*/void main(void) int a,k,l,m; int iFound,iDelete; struct Note *num; num = Creatlist(); while (1) printf(1.统计n2.查找n3.插入n4.删除n5.打印n6.退出n请输入以选择：n); scanf(%d,&a); if (a = 1) k = Traverlist(num); printf(整型数据的个数是：%dn,k); if (a = 2) printf(请输入想要查找的数:); scanf(%d,&iFound); l = searchlist(num,iFound); if (l = 1) printf(404 NOT FOUNDn); if (a = 3) printf(404 NOT FOUNDn); if (a = 4) printf(请输入想删除的项目); scanf(%d,iDelete); m =Deletelist(num , iDelete); if (m = 0) printf(删除成功n); else printf(删除失败n); if (a = 5) void Printlist(num); if (a = 6) exit(1); /*-主函数到此结束-*/struct Note * Creatlist(void)/建立链表 struct Note *spHead,*spPre,*spCur; int a; spPre = (struct Note *)malloc(SIZE); spHead = spPre; spHead - pNext = NULL; do scanf(%d,&a); if (a != 0) spCur = (struct Note *)malloc(SIZE); spCur - value = a; spCur - pNext = NULL; spPre - pNext = spCur; spPre = spCur; while(a != 0);/以输入0作为结束 return spHead;int Traverlist(struct Note * sp)/统计 struct Note *spCur; int b = 0; spCur = sp - pNext; while(spCur != NULL ) b +; spCur = spCur - pNext; return b;int searchlist(struct Note *sp,int x)/查找 struct Note *spCur; spCur = sp - pNext; while (spCur - pNext != NULL & spCur - value != x) spCur = spCur - pNext; if (spCur - value = x) printf(THE NUMBER IS %d,spCur - value); return 0; else return 1;int Deletelist(struct Note *sp,int x)/删除 struct Note *spCur,*spT; spCur = sp; while(spCur - pNext != NULL & spCur - pNext - value != x) spCur = spCur -pNext; if (spCur - pNext = NULL) return 1; spT = spCur - pNext; spCur - pNext = spCur - pNext - pNext; free(spT); return 0;void Printlist(struct Note *sp) struct Note *spCur; spCur = sp - pNext; printf(链表中的整型数据为：/n); while (spCur != NULL) printf(%dn,spCur - value); spCur = spCur - pNext; printf(n);学生成绩1.0版本/*五个学生四门功课成绩排名感觉像是回到了高中=。=第一次录入时，总分，均分输入0！*/#include#define swap(x,y) int tmp=x;x=y;y=tmp;/*定义了一个交换器函数不然感觉很烦人*/void main(void) int iCj57=0; int i,j,k; int iPos,iTem = 0; printf(请依次输入五位学生的学号和各科成绩n); for (i = 0; i 5; i +) for (j = 0; j 7; j +) scanf(%d,&iCjij); for (i = 0; i 5; i + ) for (j = 1; j 5; j + )/*第一列是学号=。=*/ iCji5 += iCjij; iCji6 = iCji5 / 4 ;/*真正的总分和均分*/ for (i = 0; i 4; i +) iPos = i; for(j = i + 1; j iCjiPos5) iPos = j; for (k=0;k7;k+) swap(iCjik,iCjiPos