我知道這可能是一個天真的問題,但它對我來說是一個問題。現在我已經在applicationDidFinishLaunching中聲明瞭對象。如何使用此對象的applicationDidFinishLaunching 外如何使用這些對象在按鈕操作功能例如objective c如何從外部訪問applicationDidFinishLaunching變量
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
// Insert code here to initialize your application
AKanji *test2=[[AKanji alloc] init];
........
}
- (IBAction)kButton:(id)sender {
//iwant to access test 2 here
}
Wha t是面向對象代碼和實例變量的知識史嗎? – Wain 2014-12-05 09:46:13
我對他們很陌生。對不起,我搜索了網絡機器人沒有找到任何答案 – 2014-12-05 09:48:47
你應該閱讀https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html#//apple_ref/doc/uid/TP40011210-CH1-SW1,並通過https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/EncapsulatingData/EncapsulatingData.html#//apple_ref/doc/uid/TP40011210- CH5-SW2瞭解這部分 – Wain 2014-12-05 09:52:30