这个的过程是什么啊？
i = 5; while(5) 5%2==1 continue;
i = 4; while(4) 4%2==0 sum+= 4;
i = 3; while(3) 3%2==1 continue;
i = 2; while(2) 2%2==0 sum+= 2;
i = 1; while(1) 1%2==1 continue;
i = 0; while(0) 退出
结果为6
i = 5; while(5) 5%2==1 continue;
i = 4; while(4) 4%2==0 sum+= 4;
i = 3; while(3) 3%2==1 continue;
i = 2; while(2) 2%2==0 sum+= 2;
i = 1; while(1) 1%2==1 continue;
i = 0; while(0) 退出
结果为6