Question

我有两个数组作为休闲，

NSArray *First=@[@"a", @"b", @"c",@"d", @"e", @"f",@"g", @"h", @"i", @"j", @"k"];
NSArray *Second=@[@"a",@"d", @"e",@"g",@"i"];

现在在

 NSMutableArray *Result=[[NSMutableArray alloc]init];

当我的NSLog结果数组时，我将输出作为

[ b C F H Ĵ ķ ]

表示结果数组应该从第一个数组中删除第二个数组中的元素，条件是Witout usuing removeObjectAtIndex方法

先谢谢。

Answer 1

for (id object in First)
    if (![Second containsObject:object]) [Result addObject:object];

Answer 2

以下是获取输出的代码，无需使用removeObjectAtIndex Method.Try this：

NSArray *First=@[@"a", @"b", @"c",@"d", @"e", @"f",@"g", @"h", @"i", @"j", @"k"];
    NSArray *Second=@[@"a",@"d", @"e",@"g",@"i"];

    NSMutableArray *result=[[NSMutableArray alloc]init];


    for (NSString *tempChar in First) {
        if (![Second containsObject:tempChar]) {

            [result addObject:tempChar];
            NSLog(@"result arr :%@",result);
        }
    }

Answer 3

var range = sheet.Cells["A3"].LoadFromText(new FileInfo(fileCSVFull), format, TableStyles.Medium27, true);
var numStyle = package.Workbook.Styles.CreateNamedStyle("TableNumber");
numStyle.Style.Numberformat.Format = "# ##0,00";

var tbl = sheet.Tables[0];
tbl.ShowTotal = true;
tbl.Columns[0].TotalsRowLabel = "Total";

tbl.Columns[1].TotalsRowFunction = RowFunctions.Sum;
tbl.Columns[1].DataCellStyleName = "TableNumber";
tbl.Columns[2].TotalsRowFunction = RowFunctions.Sum;
tbl.Columns[2].DataCellStyleName = "TableNumber";
tbl.Columns[3].TotalsRowFunction = RowFunctions.Sum;
tbl.Columns[3].DataCellStyleName = "TableNumber";

string numcell = "E4:E"+(3 + nbline); 
sheet.Cells[numcell].Formula = "B4*C4";
sheet.Cells[numcell].StyleName = "TableNumber";

sheet.View.ShowGridLines = false;
sheet.Calculate();
sheet.Cells[sheet.Dimension.Address].AutoFitColumns();

Answer 4

没有循环，您可以使用NSSet

对其进行归档

NSMutableSet *firstSet1 = [NSMutableSet setWithArray: First];
NSSet *secondSet2 = [NSSet setWithArray: Second];
[firstSet1 minusSet: secondSet2];
NSArray * Result = [firstSet1 allObjects];

如何在没有hardcoring索引的情况下擦除Parent数组中的Child数组的重复项

4 个答案: