iOS開發腳踏實地學習day15-畫板

//開啓/獲取/關閉上下文的用UIGraphics...字體 //配置上下文的用CGcontext...ui 1.圖像添加logoatom - (void)viewDidLoad {spa     [superviewDidLoad];繼承     // Do any additional setup after loading the view, typically from a nib.圖片

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