编写程序显示加密后的阵列，以及所对应的文字或符号

用顺时针的排序方式把字母或符号加密成一直行的字符， 而S会增加字与字之间的行距，使加密的排序不同

#include <cstring>

#include <iostream>
using namespace std;


class Codec {
private:
    int W, H, S;
    const char C[71] =
            "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890 .,-!?()";
    char M[70][70];

public:
    Codec() :W(70),H(1),S(0){
        for(int i=0;i<70;++i){
            memset(&M[i][0],'\0',70);
        }
        generate();
    }
    Codec(int w, int h, int s) :W(w),H(h),S(s){
        for(int i=0;i<70;++i){
            memset(&M[i][0],'\0',70);
        }
        generate();
    }

    void generate(){
        int left=0,top=0;
        int right=W-1,bottom=H-1;
        int l,r,b,t;
        int idx=0;
        int cur=0;
        while(left<=right&&top<=bottom){
            l=left;
            while(l<=right){
                if(idx==70)return;
                if((cur+1)%(S+1)==0)M[top][l++]=C[idx++];
                else {
                    M[top][l++]='\0';
                }
                ++cur;
            }
            ++top;
            t=top;
            while(t<=bottom){
                if(idx==70)return;
                if((cur+1)%(S+1)==0)M[t++][right]=C[idx++];
                else {
                    M[t++][right]='\0';
                }
                ++cur;
            }
            --right;
            r=right;
            while(r>=left){
                if(idx==70)return;
                if((cur+1)%(S+1)==0)M[bottom][r--]=C[idx++];
                else {
                    M[bottom][r--]='\0';
                }
                ++cur;
            }
            --bottom;
            b=bottom;
            while(b>=top){
                if(idx==70)return;
                if((cur+1)%(S+1)==0)M[b--][left]=C[idx++];
                else {
                    M[b--][left]='\0';
                }
                ++cur;
            }
            ++left;
        }
    }

    void config(int w, int h, int s) {
        W=w;
        H=h;
        S=s;
        for(int i=0;i<70;++i){
            memset(&M[i][0],'\0',70);
        }
        generate();
    }
    void showSetting() {
        cout<<"W="<<W<<", "<<"H="<<H<<", "<<"S="<<S<<endl;
        for(int i=0;i<H;++i){
            for(int j=0;j<W;++j){
                if(M[i][j]=='\0')cout<<" ";
                else cout<<M[i][j];
            }
            cout<<endl;
        }
        char seq[71]={0};
        getSeq(seq);
        cout<<"Seq: "<<seq<<endl;

    }

    void getSeq(char out[]){
        int idx=0;
        for(int i=0;i<W;++i){
            for(int j=0;j<H;++j){
                if(M[j][i]=='\0')continue;
                out[idx++]=M[j][i];
            }
        }
    }

    void encode(char in[], char out[]) {
        char seq[71]={0};
        getSeq(seq);
        for(int i=0;i<1000;++i){
            if(in[i]=='\0')break;
            bool flag=true;
            for(int j=0;j<71;++j){
                if(in[i]==C[j]){
                    out[i]=seq[j];
                    flag=false;
                    break;
                }
            }
            if(flag)out[i]=in[i];
        }
    }
    void decode(char in[], char out[]) {
        char seq[71]={0};
        getSeq(seq);
        for(int i=0;i<1000;++i){
            if(in[i]=='\0')break;
            bool flag=true;
            for(int j=0;j<71;++j){
                if(in[i]==seq[j]){
                    out[i]=C[j];
                    flag=false;
                    break;
                }
            }
            if(flag)out[i]=in[i];
        }
    }
};




int main() {
    char cmd, inStr[1000], outStr[1000];
    bool fin=false;
    Codec C;
    while(!fin) {
        cout << "\nCommand: ";
        cmd = cin.get();
        switch(cmd) {
            case 'C':
                int w,h,s;
                cin>>w>>h>>s;
                C.config(w,h,s);
                cin.ignore(1000,'\n');
                break;
            case 'Q':
                cout << "Quit\n";
                cin.ignore(1000,'\n');
                fin=true;
                break;
            case 'S':
                C.showSetting();
                cin.ignore(1000,'\n');
                break;
            case 'E':
                cin.get();
                cin.getline(inStr,1000);
                C.encode(inStr,outStr);
                cout << outStr<<endl;
                break;
            case 'D':
                cin.get();
                cin.getline(inStr,1000);
                C.decode(inStr,outStr);

                cout << outStr<<endl;
                break;
        }
    }
    return 0;
}

参考一下呢