- (void)viewWillAppear:(BOOL)animated {
? ? [superviewWillAppear:animated];
? ? if(figMark<1) {
? ? ? ? //請(qǐng)求數(shù)(非開盤期間進(jìn)入這個(gè)頁(yè)面也要重新請(qǐng)求一次)质况，因?yàn)檎?qǐng)求數(shù)據(jù)是異步操作愕宋，所以線程開啟放到請(qǐng)求數(shù)據(jù)成功或者失敗后。
? ? ? ? [self requestStockData];
? ? ? ? figMark++;
? ? }
}
-(void)viewDidDisappear:(BOOL)animated{
? ? [superviewWillDisappear:animated];
? ? figMark--;
}
