CHDiscountDetailView *xin = [[CHDiscountDetailView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];
self.view = xin;
self.discountDetailView = xin;
[xin release];
//不知道 为什么这样定就总会崩溃,上边的话没事
self.discountDetailView = [[[CHDiscountDetailView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)]autorelease];
[self.view addSubview: self.discountDetailView];
[discountDetailView release];