fix: 🐛 update NO.38 question

add demo for NO.38

✅ Closes: ChenYilong#69 ChenYilong#47 ChenYilong#44

Author: ChenYilong

01《招聘一个靠谱的iOS》面试题参考答案/Deme_39_CYLSystemAPIMemoryLeak/Deme_39_CYLSystemAPIMemoryLeak.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		9A3CA841248CE5960022276A /* CYLBaseViewController+CYLBaseViewControllerExtension.m in Sources */ = {isa = PBXBuildFile; fileRef = 9A3CA840248CE5960022276A /* CYLBaseViewController+CYLBaseViewControllerExtension.m */; };
 		9AD5C4742485167900704476 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 9AD5C4732485167900704476 /* AppDelegate.m */; };
 		9AD5C4772485167900704476 /* SceneDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 9AD5C4762485167900704476 /* SceneDelegate.m */; };
 		9AD5C47A2485167900704476 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 9AD5C4792485167900704476 /* ViewController.m */; };
@@ -43,6 +44,8 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		9A3CA83F248CE5960022276A /* CYLBaseViewController+CYLBaseViewControllerExtension.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "CYLBaseViewController+CYLBaseViewControllerExtension.h"; sourceTree = "<group>"; };
+		9A3CA840248CE5960022276A /* CYLBaseViewController+CYLBaseViewControllerExtension.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = "CYLBaseViewController+CYLBaseViewControllerExtension.m"; sourceTree = "<group>"; };
 		9AD5C46F2485167900704476 /* Deme_39_CYLSystemAPIMemoryLeak.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Deme_39_CYLSystemAPIMemoryLeak.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		9AD5C4722485167900704476 /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
 		9AD5C4732485167900704476 /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
@@ -145,6 +148,8 @@
 				9AD5C4B724851B8200704476 /* NSOperationQueueIVARBlock.m */,
 				9AD5C4B92485273B00704476 /* CYLBaseViewController.h */,
 				9AD5C4BA2485273C00704476 /* CYLBaseViewController.m */,
+				9A3CA83F248CE5960022276A /* CYLBaseViewController+CYLBaseViewControllerExtension.h */,
+				9A3CA840248CE5960022276A /* CYLBaseViewController+CYLBaseViewControllerExtension.m */,
 				9AD5C47B2485167900704476 /* Main.storyboard */,
 				9AD5C47E2485167D00704476 /* Assets.xcassets */,
 				9AD5C4802485167D00704476 /* LaunchScreen.storyboard */,
@@ -311,6 +316,7 @@
 				9AD5C4B524851B7600704476 /* NSOperationQueueBlock.m in Sources */,
 				9AD5C4AF24851B5D00704476 /* NSNotificationCenterIVARBlock.m in Sources */,
 				9AD5C4B224851B6900704476 /* GCDBlock.m in Sources */,
+				9A3CA841248CE5960022276A /* CYLBaseViewController+CYLBaseViewControllerExtension.m in Sources */,
 				9AD5C4B824851B8200704476 /* NSOperationQueueIVARBlock.m in Sources */,
 				9AD5C4772485167900704476 /* SceneDelegate.m in Sources */,
 			);

01《招聘一个靠谱的iOS》面试题参考答案/Deme_39_CYLSystemAPIMemoryLeak/Deme_39_CYLSystemAPIMemoryLeak.xcodeproj/project.xcworkspace/xcuserdata/chenyilong.xcuserdatad/UserInterfaceState.xcuserstate

@@ -0,0 +1,20 @@
+//
+//  CYLBaseViewController+CYLBaseViewControllerExtension.h
+//  Deme_39_CYLSystemAPIMemoryLeak
+//
+//  Created by chenyilong on 2020/6/7.
+//  Copyright © 2020 ChenYilong. All rights reserved.
+//
+
+#import "CYLBaseViewController.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface CYLBaseViewController (CYLBaseViewControllerExtension)
+
+- (void)cyl_test;
++ (void)cyl_testClass;
+
+@end
+
+NS_ASSUME_NONNULL_END

01《招聘一个靠谱的iOS》面试题参考答案/Deme_39_CYLSystemAPIMemoryLeak/Deme_39_CYLSystemAPIMemoryLeak/CYLBaseViewController+CYLBaseViewControllerExtension.h

@@ -0,0 +1,21 @@
+//
+//  CYLBaseViewController+CYLBaseViewControllerExtension.m
+//  Deme_39_CYLSystemAPIMemoryLeak
+//
+//  Created by chenyilong on 2020/6/7.
+//  Copyright © 2020 ChenYilong. All rights reserved.
+//
+
+#import "CYLBaseViewController+CYLBaseViewControllerExtension.h"
+
+@implementation CYLBaseViewController (CYLBaseViewControllerExtension)
+
+- (void)cyl_test {
+    NSLog(@"🔴类名与方法名：%@（在第%@行）, 描述：%@", @(__PRETTY_FUNCTION__), @(__LINE__), @"");
+}
+
++ (void)cyl_testClass {
+    NSLog(@"🔴类名与方法名：%@（在第%@行）, 描述：%@", @(__PRETTY_FUNCTION__), @(__LINE__), @"");
+}
+
+@end

01《招聘一个靠谱的iOS》面试题参考答案/Deme_39_CYLSystemAPIMemoryLeak/Deme_39_CYLSystemAPIMemoryLeak/CYLBaseViewController+CYLBaseViewControllerExtension.m

@@ -7,6 +7,7 @@
 //
 
 #import "CYLBaseViewController.h"
+#import "CYLBaseViewController+CYLBaseViewControllerExtension.h"
 
 @interface CYLBaseViewController ()
 

01《招聘一个靠谱的iOS》面试题参考答案/Deme_39_CYLSystemAPIMemoryLeak/Deme_39_CYLSystemAPIMemoryLeak/CYLBaseViewController.m

@@ -7,6 +7,7 @@
 //
 
 #import "NSOperationQueueIVARBlock.h"
+#import "CYLBaseViewController+CYLBaseViewControllerExtension.h"
 
 @interface NSOperationQueueIVARBlock ()
 
@@ -16,6 +17,11 @@ @implementation NSOperationQueueIVARBlock
 
 - (void)viewDidLoad {
     [super viewDidLoad];
+    [self cyl_test];                                       //分类实例方法：必须在子类中手动 import 父类的分类, 否则抛 编译错误❌
+    [self performSelector:@selector(cyl_test)];            //分类实例方法：必须在子类中手动 import 父类的分类, 否则抛 warning⚠️
+    [[self class] cyl_testClass];                          //分类类方法：  必须在子类中手动 import 父类的分类, 否则编译错误   ❌
+    [[self class]performSelector:@selector(cyl_testClass)];//分类类方法：  必须在子类中手动 import 父类的分类, 否则抛 warning⚠️
+
     // Do any additional setup after loading the view.
 //    _mainQueue = [[NSOperationQueue mainQueue] addOperationWithBlock:^{ self.someProperty = xyz; }];
 }