一．实验目的：

1. 1. 掌握一维数组和二维数组的定义、赋值和输入输出的方法。

   2. 掌握字符数组和字符串函数的使用。

   3. 通过实验进一步掌握指针的概念，会定义和使用指针变量。

   4. 能正确使用数组的指针和指向数组的指针变量。

   5. 能正确使用字符串的指针和指向字符串的指针变量。

   6. 能正确使用引用型变量。

二．实验内容：

1. 运行调试第5章编程示例5-3，5-4，5-5扑克发牌程序；完成练习题5.3.1，5.4.1, 5.5.1和7.5.2；
2. 运行调试第6章编程示例6-3数组排序器；完成以下练习：
   1. 改进sort函数；
   2. 用vector改造程序，使其支持变长数组；
   3. 用char类型来改造程序具有更好输入方式，使其能一次性输入多个数组元素；
   4. 用string类型来改造程序具有更好输入方式，使其能一次性输入多个数组元素；

三．示例代码：

　　1.第5章编程示例5-3扑克发牌程序:

#include 
     
      #include 
      
       #include 
       
        #include 
        
         using namespace std;int rand_0toN1(int n);void draw_a_card();char *suits[4] = {"hearts", "diamonds", "spades", "clubs"};char *ranks[13] = {"ace", "two", "three", "four", "five","six", "seven", "eight", "nine","ten", "jack", "queen", "king" };int main() {int n, i;srand(time(NULL)); // Set seed for random numbers.while (1) {cout << "Enter no. of cards to draw (0 to exit): ";cin >> n;if (n == 0)break;for (i = 1; i <= n; i++)draw_a_card();}return 0;}// Draw-a-card function// Performs one card-draw by getting a random 0-4 and a random// 0-12. These are then used to index the string arrays, ranks// and suits.//void draw_a_card() {int r; // Random index (0 thru 12) into ranks arrayint s; // Random index (0 thru 3) into suits arrayr = rand_0toN1(13);s = rand_0toN1(4);cout << ranks[r] << " of " << suits[s] << endl;}// Random 0-to-N1 Function.// Generate a random integer from 0 to N-1.//int rand_0toN1(int n) {return rand() % n;}
        
       
      
     

　　

　　2.第6章编程示例6-3数组排序器:

#include 
     
      using namespace std;void sort(int n);void swap(int *p1, int *p2);int a[10];int main () {int i;for (i = 0; i < 10; i++) {cout << "Enter array element #" << i << ": ";cin >> a[i];}sort(10);cout << "Here are all the array elements, sorted:" << endl;for (i = 0; i < 10; i++)cout << a[i] << " ";cout << endl;system("PAUSE");return 0;}// Sort array function: sort array named a, having n elements.// void sort (int n) {int i, j, low;for(i = 0; i < n - 1; i++) {// This part of the loop finds the lowest// element in the range i to n-1; the index// is set to the variable named low.low = i;for (j = i + 1; j < n; j++)if (a[j] < a[low])low = j;// This part of the loop performs a swap if// needed.if (i != low)swap(&a[i], &a[low]);}}// Swap function.// Swap the values pointed to by p1 and p2.//void swap(int *p1, int *p2) {int temp = *p1;*p1 = *p2;*p2 = temp;}