4.2 字符数组

• 程序来源 ：C++ primer plus
• 章 节 ：4.2
• 名 称 ：string.cpp
• 功 能 ：输出字符串
• 开发时间 ：2019-10-29
• 版 本 ：v1.0
• 运行测试 ：通过

/********************************
 * 程序来源 ：C++ primer plus
 * 章    节 ：4.2
 * 名    称 ：string.cpp
 * 功    能 ：输出字符串
 * 开发时间 ：2019-10-29
 * 版    本 ：v1.0
 * 运行测试 ：通过
 *******************************/
#include <iostream>
#include <cstring>

using namespace std;

int main() {
    const int Size = 15;

    char name1[Size];                //size: 15
    char name2[Size] = "C++owboy";   //size: 15, len:8

    cout << "Howboy I'm " << name2;
    cout << "! what's you name?\n";
    cin >> name1;                   //basicman
    cout << "well," << name1 <<",your name has ";   //basicman
    cout << strlen(name1) <<" letters and is stored\n";  //8
    cout <<"in an array of " << sizeof(name1) <<" bytes.\n";  //15
    cout <<"You initial is "<< name1[0] <<".\n";  //b
    name2[3] = '\0';    // end name2  name2[]="C++\0"
    cout << "Here are he first 3 characters of my name ";
    cout << name2 << endl;   //C++

    return 0;
}

运行结果：

Howboy I'm C++owboy! what's you name?
BasicMan
well,BasicMan,your name has 8 letters and is stored
in an array of 15 bytes.
You initial is B.
Here are he first 3 characters of my name C++

--------------------------------
Process exited after 6.358 seconds with return value 0
请按任意键继续. . .