ma.rar_visual c

#include<iostream.h> #include <math.h> class ma { public: void mn() { start: char a[12]="",c[5]="",e[5]="",n; int i,j,m=0,b=0,k=0; cout<<"输入3个8421bcd码："; cin>>a; for(i=0;i<3;i++) for(j=0;j<4;j++) { switch(a[4*i+j]) { case '0': break; case '1': b=b+pow(2,3-j)*pow(10,2-i);break; } } while(b) { int x=b%16; switch(x) { case 0: c[m]='0';break; case 1: c[m]='1';break; case 2: c[m]='2';break; case 3: c[m]='3';break; case 4: c[m]='4';break; case 5: c[m]='5';break; case 6: c[m]='6';break; case 7: c[m]='7';break; case 8: c[m]='8';break; case 9: c[m]='9';break; case 10: c[m]='A';break; case 11: c[m]='B';break; case 12: c[m]='C';break; case 13: c[m]='D';break; case 14: c[m]='E';break; case 15: c[m]='F';break; } b=b/16; m++; } cout<<"转换后得的十六进制码为："; for(i=m-1;i>=0;i--) {e[k]=c[i];k++;} cout<<e<<endl; cout<<"是否再次转换：n/y"; cin>>n; if(n!='n'&&n!='N') goto start; } }; void main() { ma s; s.mn(); }