jun2016425的博客

#include#includevoid str_reverse(char *str);void string_reverse(char *str, int length);int main(void){ int len; /* * The string str="hello!" is in heap space if * change it will occur segm

一个简单的时间获取服务器程序 C语言代码:#include #include #include #include #include #include #define MAXLINE 128int main(int argc, char **argv){ int listenfd, connfd; struct sockaddr_in serva

一个简单的时间获取客户端程序 C语言代码:#include #include #include #include #define MAXLINE 1024int main(int argc, char **argv){ int sockfd, n; char recvline[MAXLINE + 1]; struct sockaddr_in se

C语言代码// 从描述符 fd 读取 n 个字节ssize_t readn(int fd, void *vptr, size_t n){ size_t nleft; ssize_t nread; char *ptr; ptr = vptr; nleft = n; while (nleft > 0){ if ( (nrea

面试题里面的经典题目，替换空格。 就是在给定的数组里面替换或者删除空格，我这里是删除空格 C语言代码：#include <stdio.h>#include <string.h>#include <stdbool.h>//method 1bool replace_space(char *str);// method 2bool replace_space2(char *dest, char

char a[ ] = "Hello";char *p = a;int i = strlen(a);while(i > 0){printf("%c", *p++);++i;}1 之前一直以为printf("%c", *p++);这句话是先解引用再将p指针++的，但是我还是太年轻了，不然怎么会有Hello而不是ello呢？2 但是，运算符的优先级显示后置自增操作符

字符串的循环右移，使用库函数strcpy,memcpy实现

itoa的实现，整数转换字符串处理

/* length is the maxsize of string */void replace_blank(char string[], int length){ if(NULL == string && length <= 0) return ; // originaLength real length of string int originaLength = 0; int

#include #include char * my_strcpy(char *strDest, const char *strSrc);int main(){ char d[16] = {0}; char s[] = "hello, world!"; char *t = NULL; t = my_strcpy(d, s); printf("dest string=%s\n"

#include int average(int a, int b){ /* * (a&b) is the same part of number a and b, (a^b)>>1 * is half of the diference part of number a and b. * bit computing is faster than multiplication and d

#include int main(void){ int a = 34; int b = 78; printf("a=%d, b=%d\n", a, b); // exchange two a and b with bit operation method a = a ^ b; b = a ^ b; a = a ^ b; printf("after exchange: a

atoi函数的实现，以及其中有fgets()和scanf()区别的一些使用

搜索了一下：整数数字转读音，看到C++版的链接如下： http://blog.youkuaiyun.com/wangmxe/article/details/78910143 于是乎翻译成了C语言版的如下：因为要的比较急，所有没写注释，注释请看上面给出的链接地址int num2voice(char *dest, int dlen, int num){ char vt1[][4] = {"零...