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h文件

#import <Foundation/Foundation.h>

@interface ApisTest : NSObject{

}

-(void)htest;

@end

m文件

#import 'ApisTest.h'

@interface ApisTest(Private)

-(void)mtest;

@end

@implementation ApisTest

-(void)mtest

{

    NSLog(@'mtest');

}

-(void)htest

{

   &

#import <UIKit/UIKit.h>

@interface MainView : UIViewController

{

    IBOutlet UIButton* btn;

    IBOutlet UILabel* labShow;

}

-(IBAction)push:(id)sender;

@end

MainView.m

#import 'MainView.h'

#import 'SecondView.h'

@implementation MainView

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil

{

    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];

    if (self) {

    }

@interface Test : NSObject

{

    NSString* _strTest;

}

@property (getter = getStr, retain) NSString* strTest;

@end

。m

-(void)setStrTest:(NSString *)strTest

{

    [_strTest release];

    _strTest = [NSString stringWithFormat:@'这个是传递%@',strTest];

}

-(NSString*)getStr

{

    return [NSString stringWithFormat:

-(long)fileSizeForDir:(NSString*)path//计算文件夹下文件的总大小

{

    NSFileManager *fileManager = [[NSFileManager alloc] init];

    NSArray* array = [fileManager contentsOfDirectoryAtPath:path error:nil];

    for(int i = 0; i<[array count]; i++)

    {

        NSString *fullPath = [path stringByAppendingPathComponent:[array objectAtIndex:i]];

        BOOL isDir;

        if ( !([fileManager fileExistsAtPath:fullPath