C++ Primer Plus P63——程序清单4.2（在数组中使用字符串）

C++ Primer Plus P63——程序清单4.2

在数组中使用字符串

/*
C++ Primer Plus_程序清单4.2 P63
*/

#include<iostream>
#include<cstring>

int main(void)
{
    
    
	using namespace std;						//编译指令

	const int Size = 15;						//定义常整型,字符串的元素最大个数
	
	char name1[Size];
	char name2[Size] = "C++owboy";				//也可以：name2[Size] = {'C','+','+','O','W','B','O','Y','\0'}——也代表字符串

	cout << "Howdy! I`m " << name2;				//打印
	cout << "! What`s your name" << endl;
	
	cin >> name1;

	cout << "Well, " << name1 << " , your name has ";
	cout << strlen(name1) << "letter and is stored" << endl;
	cout << "in an array of " << sizeof(name1) << " bytes." << endl;				//返回显示名字在数组所占用的总字节数
	cout << "Your initial is " << name1[0] << ".\n";								// 输出名字第一个元素

	name2[3] = '\0';																//将数组name2的第3个元素作为该字符串的终止符
	cout << "Here are the first 3 characters of my name: ";
	cout << name2 << endl;															//

	return 0;
}

前置条件：

	char name1[Size];
	char name2[Size] = "C++owboy";				//也可以：name2[Size] = {'C','+','+','O','W','B','O','Y','\0'}——也代表字符串

核心运算：

	cout << "Well, " << name1 << " , your name has ";
	cout << strlen(name1) << "letter and is stored" << endl;
	cout << "in an array of " << sizeof(name1) << " bytes." << endl;				//返回显示名字在数组所占用的总字节数
	cout << "Your initial is " << name1[0] << ".\n";								// 输出名字第一个元素

感谢观看

再次感谢~