同意水晶和lvbin
int str1[]={1,2,3,4,5,6};
int size1=sizeof(str1)/sizeof(str1[0]);
cout<<size1<<endl;
int str2[][5]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
int size2=sizeof(str2)/sizeof(str2[0][0]);
int lines=sizeof(str2)/sizeof(str2[0]);
int columns=size2/lines;
cout<<"the total number is "<<size2<<endl;
cout<<"the line number is "<<lines<<endl;
cout<<"the column number is "<<columns<<endl;