小编dba*_*ett的帖子

我试图将这段代码合并到一个新的(iOS 5)项目中......问题是,我正在使用ARC,它真的不喜欢编写的代码.

我已经能够解决大多数错误,但我遇到了3个错误,我似乎无法弄清楚.

错误#1:

对于unsafe_unretained属性'delegate'的现有ivar'委托'必须是_unsafe_unretained

.H

@interface SKPSMTPMessage : NSObject {  
    NSOutputStream *outputStream;
    NSInputStream *inputStream;

    id <SKPSMTPMessageDelegate> delegate;
}

@property(nonatomic, assign) id <SKPSMTPMessageDelegate> delegate;

.M

@synthesize login, pass, relayHost, relayPorts, subject, fromEmail, toEmail, parts, requiresAuth, inputString, wantsSecure, \
delegate, connectTimer, connectTimeout, watchdogTimer, validateSSLChain;

错误#2:

将非本地对象的地址传递给_autoreleasing参数以进行回写

.H

@interface SKPSMTPMessage : NSObject {  
    NSOutputStream *outputStream;
    NSInputStream *inputStream;

    id <SKPSMTPMessageDelegate> delegate;
}

.M

[NSStream getStreamsToHostNamed:relayHost port:relayPort inputStream:&inputStream outputStream:&outputStream];

任何指导将不胜感激.

谢谢.

我有三个NSArray,我想将它们全部合并为一个NSDictionary.问题是当我遍历数组并创建字典时,它会覆盖前一个对象.最后我在字典中只有一个对象.我究竟做错了什么？这是我的代码:

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
for(int i=0; i<[array0 count]; i++) {
    [dict setObject:[array0 objectAtIndex:i] 
             forKey:@"one"];
    [dict setObject:[array1 objectAtIndex:i] f
              orKey:@"two"];
    [dict setObject:[array2 objectAtIndex:i] 
             forKey:@"three"];
}

也许这会澄清我的意思......这是我想要的结果:

{one = array0_obj0, two = array1_obj0, three = array2_obj0},
{one = array0_obj1, two = array1_obj1, three = array2_obj1},
{one = array0_obj2, two = array1_obj2, three = array2_obj2}, 
etc

谢谢