if(line==10)wc.hIcon=LoadIcon(NULL
if (name!=null && name!="")
if(str1==NULL || substr1==NULL) return -1;嘛意思?
if(p!=NULL)p->next=NULL;for(i=4;i
if ((fp=fopen("student.bin","wb"))==NULL)
if (jButton31 == null)这句话什么作用
if (Session["UserName"] == null || Session["UserName"].ToStr
#define SAFE_RELEASE(P){if(p){(p)->Release();(p)=(NULL);}}
描写WC的诗句WC=厕所
-> 能解释下这句话中— >m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME)
当list为null的时候存在size吗?例如:if(saleList==null && saleList.size()
if ((fp==fopen(filename,"w"))==NULL) 改为 if ((fp=fopen(filena
if else 用法if(m_Rgn==NULL){\x05 m_Rgn=new CRgn; }else m_Rgn->