IOS 开发之ObjectiveC的变量类型的字符代表

NSDictionary *dic = @{@"1":[NSNumber numberWithBool:YES],
                @"2":[NSNumber numberWithChar:'1'],
                @"3":[NSNumber numberWithDouble:2.0],
                @"4":[NSNumber numberWithFloat:2.0f],
                @"5":[NSNumber numberWithInt:1],
                @"6":[NSNumber numberWithInteger:2],
                @"7":[NSNumber numberWithLong:30],
                @"8":[NSNumber numberWithLongLong:3],
                @"9":[NSNumber numberWithShort:4],
                @"10":[NSNumber numberWithUnsignedChar:'1'],
                @"11":[NSNumber numberWithUnsignedInt:3],
                @"12":[NSNumber numberWithUnsignedInteger:35],
                @"13":[NSNumber numberWithUnsignedLong:45],
                @"14":[NSNumber numberWithUnsignedLongLong:59],
                @"15":[NSNumber numberWithUnsignedShort:4]
                };
    for(NSString *key in dic){
      id value = [dic valueForKey:key];
      if([value isKindOfClass:[NSNumberclass]]){
        constcharchar * pObjCType = [((NSNumber*)value) objCType];
        NSLog(@"%@,%s",key,pObjCType);
      }
    }

UnsignedChar  =>s
Char      =>c
UnsignedShort  =>i
LongLong    =>d
UnsignedInt   =>q
Float      =>f
Int       =>i
UnsignedInteger =>q
Integer     =>q
UnsignedLong  =>q
Long      =>q
LongLong    =>q
UnsignedLongLong=>q
Bool      =>c
Short      =>s
double    =>d

NSLog(@"1=>%s",@encode(BOOL));
NSLog(@"2=>%s",@encode(char));
NSLog(@"3=>%s",@encode(double));
NSLog(@"4=>%s",@encode(float));
NSLog(@"5=>%s",@encode(int));
NSLog(@"6=>%s",@encode(NSInteger));
NSLog(@"7=>%s",@encode(long));
NSLog(@"8=>%s",@encode(longlong));
NSLog(@"9=>%s",@encode(short));
NSLog(@"10=>%s",@encode(unsignedchar));
NSLog(@"11=>%s",@encode(unsignedint));
NSLog(@"12=>%s",@encode(unsignedlong));//unsigned NSInteger
NSLog(@"13=>%s",@encode(unsignedlong));
NSLog(@"14=>%s",@encode(unsignedlonglong));
NSLog(@"15=>%s",@encode(unsignedshort));

BOOL=>c
 char=>c
 double=>d
 float=>f
 int=>i
 NSInteger=>q
 long=>q
 longlong=>q
 short=>s
 unsignedchar=>C
 unsignedint=>I
 unsigned NSInteger=>Q
 unsignedlong=>Q
 unsignedlonglong=>Q
 unsignedshort=>S