小编kum*_*mar的帖子

我正在编写登录应用程序的代码.任何人都可以帮我解析如何解析json字符串？我的代码是

-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{

    NSString *loginStatus = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];

    SBJsonParser *parser = [[SBJsonParser alloc] init];

    NSArray *loginDict = [parser objectWithString:loginDict error:nil];

    [loginStatus release];

    [connection release];

现在我正在开发自己的驱动程序.我在i/o kitDriver模板中开发.我构建我的代码它成功执行但终端中的问题.我在头文件中以下面的方式开发了代码

#include <IOKit/IOService.h>

class com_osxkernel_driver_IOKIT : public IOService
{
  OSDeclareDefaultStructors(com_osxkernel_driver_IOKIT)
public:
  virtual bool    init (OSDictionary* dictionary = NULL);
  virtual void    free (void);
  virtual IOService*      probe (IOService* provider, SInt32* score);
  virtual bool    start (IOService* provider);
  virtual void    stop (IOService* provider);
}; 

在.cpp

#include "IOKIT.h"
#include <IOKit/IOLib.h>

#define super IOService

OSDefineMetaClassAndStructors(com_osxkernel_driver_IOKIT, IOService)

bool com_osxkernel_driver_IOKIT::init (OSDictionary* dict)
{
  bool res = super::init(dict);
  IOLog("IOKI::init\n");
  return res;
}


void com_osxkernel_driver_IOKIT::free(void)
{
  IOLog("IOKIT::free\n");
  super::free();
}


IOService* com_osxkernel_driver_IOKIT::probe (IOService* provider, SInt32* score)
{
  IOService *res = …

我通过以下方式在I/O Kit驱动程序模板中编写代码:

#include <IOKit/IOService.h>
class com_osxkernel_driver_IOKitTest : public IOService
{
  OSDeclareDefaultStructors(com_osxkernel_driver_IOKitTest)
   public:
        virtual bool    init (OSDictionary* dictionary = NULL);
        virtual void    free (void);
        virtual IOService*      probe (IOService* provider, SInt32* score);
        virtual bool    start (IOService* provider);
        virtual void    stop (IOService* provider);
}; 
#include "IOKitTest.h"
#include <IOKit/IOLib.h>
#define super IOService
OSDefineMetaClassAndStructors(com_osxkernel_driver_IOKitTest, IOService)
bool com_osxkernel_driver_IOKitTest::init (OSDictionary* dict)
{
    bool res = super::init(dict);
    IOLog("IOKitTest::init\n");
    return res;
}
void com_osxkernel_driver_IOKitTest::free(void)
?{
    IOLog("IOKitTest::free\n");
    super::free();
} 
IOService* com_osxkernel_driver_IOKitTest::probe (IOService* provider, SInt32* score)
{
    IOService *res = super::probe(provider, …