//1.選擇器的建立方法
//1.1
SEL set1 = @selector(test1);
//1.2通過方法的字元串建立,
SEL set2 = NSSelectorFromString(@"test2");
//1.3方向操作,擷取方法名稱
NSString *str = NSStringFromSelector(set2);
NSLog(@"%@",str);
SEL set3 = @selector(test3:);
Student *stu = [[Student alloc] init];
//2.判斷選擇器方式是否在某類中實作
if([stu respondsToSelector:set3])
{
//2.1調用選擇器方法(可以傳對象,最多能傳兩個對象)
[stu performSelector:set3 withObject:[NSNumber numberWithInt:5]];
}
else NSLog(@"我木有被實作,你騙我");
//_____________Class_______________
//1.判斷某個對象是否是屬于某個類
int result = [stu isKindOfClass:[Student class]];
NSLog(@"%d",result);
//2.擷取某個對象的類的名稱,傳回值為字元串
NSString *class = NSStringFromClass([stu class]);
NSLog(@"%@",class);
//3.(相當于判斷某個類是否在該工程中)(Obtains a class by name.)(通過類名獲得它的類)如果沒有的話則傳回nil
Class class1 = NSClassFromString(@"Student");
Student *stu1 =[[class1 alloc]init];
stu1.name = @"yang";
NSLog(@"%@",stu1.name);
NSLog(@"%@",class1);