GeezerVison is showing github.com — programming-c-cpp-learning/string1.cpp at master · eeyoo/programming-c-cpp-learning

Expand file tree

string1.cpp

Copy path

More file actions

37 lines (31 loc) · 1.03 KB

Copy path

37 lines (31 loc) · 1.03 KB

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

/**

* c++中大量的函数用来操作以null结尾的字符串

* supports a wide range of functions that manipulate null-terminate strings

* strcpy(s1, s2) - 复制字符串s2到字符串s1

* strcat(s1, s2) - 连接字符串s2到字符串s1的末尾

* strlen(32) - 返回字符串s1的长度

* strcmp(s1, s2) - 先猜猜看

* strchr(s1, ch) - 返回一个指针，指向字符串s1中ch首次出现的位置

* strstr(s1, s2) - 返回一个指针，指向字符串s1中字符串s2首次出现的位置

#include <iostream>

#include <cstring>

using namespace std;

int main()

{

char str1[10] = "Hello";

char str2[10] = "World";

char str3[10];

int len;

// copy str1 to str3

strcpy(str3, str1);

cout << "strcpy( str3, str1 ) : " << str3 << endl;

// connect str1 and str2

strcat(str1, str2);

cout << "strcat( str1, str2 ) : " << str1 << endl;

// get length of str1

len = strlen(str1);

cout << "strlen( str1 ) : " << strlen(str1) << endl;

cout << "strlen( str1 ) : " << len << endl;

return 0;

}