CLanguage-list-routine-.rar_site:www.pudn.com

# include<stdio.h> #include<iostream> #include<string.h> #include<malloc.h> #include <memory.h> using namespace std; #define M 4 #define N 4 #define NAMESIZE 32 struct Students//结构体定义和嵌套 { int Number; char name [NAMESIZE]; struct birthday { int year; int month; int day; }agement; int age; }; union//联合体定义 { int i; float j; char str; }NUM,*p; void Pointer_one(void) { int a=1000; int *p; p=&a; printf("--------程序一状态--------------------\n"); printf("p=%d\na=%d\n",p,*p); printf("--------------------------------------\n"); printf("\n"); } void Pointer_two(void) { int i; int b[10]={1,2,3,4,5,6,7,8,9,10}; int *q; q=&b[0]; printf("--------程序二状态--------------------\n"); for(i=0;i<10;i++) { if(*q!='\0') { printf("%d",*q); q++; } } printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void Pointer_three(void) { int Arry[]={1,2,3,4,5,6,7,8,9,10,11,12,13,14}; int *p; int i; p=Arry;//p=&Arry[0], printf("--------程序三状态--------------------\n"); printf("结果一\n"); for(i=0;i<(sizeof(Arry)/sizeof(*Arry));i++) { printf("%d",p[i]); } printf("\n"); printf("结果二\n"); for(i=0;i<(sizeof(Arry)/sizeof(*Arry));i++) { printf("%d",*(p+i)); } printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void Pointer_printArry(int *p,int n) { int i; printf("--------程序四状态--------------------\n"); for(i=0;i<n;i++) { printf("%d",*(p+i)); } printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void Pointer_printArryTwo(int p[1000],int n)//形参*p等价p[N],N为任意数值 { int i; printf("--------程序五状态--------------------\n"); for(i=0;i<n;i++) { printf("%d",*(p+i)); } printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void DoubleArry(void) { int i; int Arry[M][N]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16}; int *p=*(Arry+0);//&Arry[0][0]/Arry[0]/*Arry指向二维数组的指针必须为列指针 printf("--------程序六状态--------------------\n"); for(i=0;i<M*N;i++) { printf("%d ",*(p+i)); } printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void DoubleArryTwo(int p[2][4],int m,int n)//p[2][4]行随便定义列不能随便定义 { int i,j; printf("--------程序七状态--------------------\n"); for(i=0;i<m;i++) { for(j=0;j<n;j++) printf("%d ",p[i][j]); printf("\n"); } printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void sTR_putout(void) { char str[]="Hello Word,Embedded By DriveWheel"; printf("--------程序八状态--------------------\n"); printf("%s\n",str); puts(str); printf("字符元素串个数= %d\n字符串类型长度= %d\n",strlen(str),sizeof(str)); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void sTR_COPY(void)//串常量不能直接赋值 { char str[]="Hello World,Embedded By DriveWheel"; printf("--------程序九状态--------------------\n"); printf("用SHEN ZHEN DRIVEWHEEL;CO;LTD替换str\n"); printf("替换前：\n"); printf("%s\n",str); puts(str); printf("原元素个数= %d\n原类型长度= %d\n",strlen(str),sizeof(str)); strcpy(str,"SHEN ZHEN DRIVEWHEEL;CO;LTD"); printf("替换后：\n"); printf("%s\n",str); puts(str); printf("现元素个数= %d\n现类型长度= %d\n",strlen(str),sizeof(str)); printf("元素被替换但是长度并没有变化\n"); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void str_Point_control(void)//指针串常量可以直接赋值 { char *str="SHENZHEN μπTECHNOLOGY;CO.LTD"; printf("--------程序十状态--------------------\n"); puts(str); printf("原元素个数= %d\n原类型长度= %d\n",strlen(str),sizeof(str)); str="HelloWorld"; puts(str); printf("现元素个数= %d\n现类型长度= %d\n",strlen(str),sizeof(str)); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void structType_Control(void)//正常操作结构体 { struct Students person ={ 668899,"μπ",{2014,8,9},25}; printf("--------程序11状态--------------------\n"); printf("结构体程序演示\n"); printf("编号：%d\n姓名：%s\n生日：%d-%d-%d\n年龄：%d\n",person.Number,\ person.name,person.agement.year,person.agem\ ent.month,person.agement.day,person.age); printf("传参开销：%d\n",sizeof(person)); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void structType_control_by_Point(struct Students *p) { printf("--------程序12状态--------------------\n"); printf("结构体指针操作程序演示\n"); printf("编号：%d\n姓名：%s\n生日：%d-%d-%d\n年龄：%d\n",p->Number ,p->name\ ,p->agement.year ,p->agement.month,p->agement.day,p->age ); printf("传参开销：%d\n",sizeof(p)); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void union_control_demo(void) { printf("--------程序13状态--------------------\n"); printf("联合体指针操作程序演示\n"); NUM.i =100; p=&NUM; printf("%d\ni=%d\n",sizeof(p),p->i); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } char *Mine_strcpyDesplay(char *des,const char *loc)//指针函数实现字符串的赋值 { char *p=des; printf("--------程序14状态--------------------\n"); printf("指针函数操作程序演示：字符串复制\n"); puts(loc); puts(des); printf("复制前目的字符串长度=%d\n复制前被复制字符串\ 的长度=%d\n",strlen(des),strlen(loc)); if(des!= NULL && loc!= NULL) { while((*des++=*loc++)!='\0') ; } return p; } int SUM_control(int a,int b) { int sum; sum=a+b; return sum; } int DEC_control(int a,int b) { int dec; dec=a-b; return dec; } void Math_point_con(int a,int b) { int (*p[2])(int,int);//函数指针 int t; int fun; printf("--------程序15状态--------------------\n"); printf("函数指针操作程序演示\n"); printf("被操作数：%d\n操作数：%d\n",a,b); p[0]= SUM_control; p[1]= DEC_control; for(t=0;t<2;t++) { fun=p[t](a,b); if(t==0) { printf("两个数的和为：%d\n",fun); } else printf("两个数的差为：%d\n",fun); } printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void C_TypeCounter(void) { printf("--------程序15状态--------------------\n"); printf("函数指针操作程序演示\n"); printf("unsigned int=%d\nsigned int=%d\nunsigned long=%d\nsigned long=%d\n\ float=%d\ndouble=%d\n\ short=%d\nunsigned char=%d\nsigned char=%d\n",sizeof(unsigned int),sizeof(signed int)\ ,sizeof(unsigned long),sizeof(signed long),sizeof(float),sizeof(double),\ sizeof(short),sizeof(unsigned char),sizeof(signed char)); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void Malloc_memory_allocate(void)//内存分配将数值填进对应的内存空间 { printf("--------程序16状态--------------------\n"); printf("内存分配函数malloc操作程序演示\n"); int i; int *p=(int *)malloc(4); printf("释放前的将结果\n"); for(i=0;i<4;i++) { *(p+i)=(i+1)*25; printf("%d= ",(p+i)); printf("%d\n",*(p+i)); } printf("p的字节大小=%d\nmalloc的字节大小=%d\n总共分配的字节大小=%d\n",\ sizeof(p),sizeof((int*)(malloc(4))),sizeof(p)+sizeof((int*)(malloc(4)))); printf("\n"); printf("--------------------------------------\n"); printf("\n"); } void free_malloc() { printf("--------程序17状态--------------------\n"); printf("内存分配函数malloc free操作程序演示\n"); typedef struct data_type { int age; char name[20]; int ID; struct BIR { int year; int month; int day; }birth; }data; data *bob; bob = (data *) malloc( sizeof(data) ); printf("指针的大小：%d\n",sizeof(bob)); printf("结构体字节：%d\n",sizeof(data)); //printf("释放前指针所指位置：%d\n",bob); if( bob != NULL ) { bob->age = 22; b