iOS NSMutableArray排序

#pragma mark 可变数组的排序

NSMutableArray * array = [NSMutableArray arrayWithObjects: @"1",@"8",@"2",@"7",@"2",@"5",@"9",nil];

//选择

for (int  i =0; i<[array count]-1; i++) {

for (int j = i+1; j<[array count]; j++) {

if ([array[i] intValue]>[array[j] intValue]) {

//交换

[array exchangeObjectAtIndex:i withObjectAtIndex:j];

}

}

}

NSLog(@"%@",array);

NSMutableArray * array1 =[[NSMutableArray alloc]initWithObjects:@"zhige",@"saozi",@"bge",@"xiaolong",@"xiaomo",@"xiaomi", nil];

//冒泡

for (int i =0; i<[array1 count]-1; i++) {

for (int j =0; j<[array1 count]-1-i; j++) {

if(([array1[j] compare:array1[j+1]]) == NSOrderedDescending){

//交换

[array1 exchangeObjectAtIndex:j withObjectAtIndex:j+1];

}

}

}

NSLog(@"%@",array1);