C Language 串 - 顺序串（九）

• 顺序串的应用十分广泛，例如加密解密操作

• 创建结构体以及二维数组

#include
#include
#define ROW 2
#define COL 26
#define MaxSize 20
struct Num {
	char num[ROW][COL];
} num;
struct String {
	char ch[MaxSize];
	int length;
};
//创建二维数组
void creatNum(Num &num) {
	int i , j ;
	char c = 'a';
	//设定加密规则
	char encrty[] = {'n','g','z','q','t','c','o','b','m','u','h','e','l','k','p','d','a','w','x','f','y','i','v','r','s','j'};
	for(i = 0; i 
输出二维数组
 
//输出二维数组
void ptfNum(Num num) {
	int i = 0, j = 0;

	for(i = 0; i 
加密操作
 
//加密操作
void encrty(struct String &string , Num num) {
	int i , j , k;
	for(i=0; i 
解密操作
 
//解密操作
void decrypt(struct String &string , Num num) {
	int i , j , k;
	for(i=0; i=0; j--) 
			for(k=0; k 
主函数运行
 
//主函数
main() {
	struct String str;
	Num num;
	creatNum(num);
	//为了展示方便 直接赋值了
	char c[] = {'a','s','d','q','w','m','o','a','s','o','d','a','s','d'};
	int i = 0;
	for(i; i<14; i++) {
		str.ch[i] = c[i];
	}
	str.length = 14;
	ptfNum(num);
	printf("n加密前：n");
	ptfEncrty(str);
	encrty(str,num);
	printf("n加密后：n");
	ptfEncrty(str);

	printf("n解密前：n");
	ptfEncrty(str);
	decrypt(str,num);
	printf("n解密后：n");
	ptfEncrty(str);
	return 0;
}
 
结果展示为：