Question

C++ Builder中这句是啥意思,知道的,帮我在下面注一下好吗,谢谢啦

temp=(unsigned char ) WinNameCheck->Checked ;
flag=temp<<1;
temp=(unsigned char ) WinNumber->Checked ;
flag|=temp;
p=send_top(0,SET_TYPE,MU_DISPLAY+DisplayAddr->ItemIndex,23);

Answer 1

temp=(unsigned char ) WinNameCheck->Checked ; //强制将WinNameCheck->Checked 所返回的bool型返回值转换为无符号字符型temp。
flag=temp<<1; //temp左移一位后赋给flag
temp=(unsigned char ) WinNumber->Checked ;//玛丽玛丽红，再来
flag|=temp; //flag与temp按位或后赋值给flag
p=send_top(0,SET_TYPE,MU_DISPLAY+DisplayAddr->ItemIndex,23);//发消息