作者:mobiledu2502874483 | 来源:互联网 | 2023-10-16 16:34
#importNSIntegermyCompare(idobj1,idobj2,void*context){不分大小写进行升序排序return[obj1caseInsensit
#import
NSInteger myCompare(id obj1,id
obj2,void *context)
{
//不分大小写进行升序排序
//return [obj1 caseInsensitiveCompare:obj2];
return -[obj1
caseInsensitiveCompare:obj2];
}
int main(int argc, const
char * argv[])
{
@autoreleasepool {
NSArray
*array=@[@"one", @"Two",
@"Three", @"Four"];
NSMutableArray
*mutableArray=[NSMutableArrayarrayWithArray:array];
//1不可变数组通过自定义比较规则来比较字符串
NSArray *result= [array
sortedArrayUsingFunction:myComparecontext:nil];
NSLog(@"%@\n",result);
//类提供compare方法不想改变数组顺序
[array
sortedArrayUsingSelector:@selector(compare:)];
NSLog(@"%@\n",array);
//2直接在数组内排序
[mutableArray
sortUsingFunction:myCompare
context:nil];
NSLog(@"%@\n",mutableArray);
}
return 0;
}
不可变数组或者可变数组进行排序,,
不可变数组或者可变数组进行排序