可通過服務器配置使用哪個類、顯示哪個頁面
let namespace = Bundle.main.infoDictionary["CFBundleExecutable"] let class = NSClassFromString(namespace + "." + "類名")
@implementation NSObject (Crash) + (void)load { [self exchangeInstanceMethodWithOriginalSelector:@selector(met
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如何調試 示例代碼: // 1. 聲明方法 extern void _objc_autoreleasePoolPrint(void); // 2. 打印信息 _objc_autoreleasePoolPrint(); 案例 由
示例代碼: __weak NSObject *object; { NSObject *object_1 = [NSObject new]; NSLog(@"Retain Count = %ld", CFGetRe