Question

如何将数组（例如[Int]）转换为字符串，在元素之间保留逗号？如果我有一个像[1,2,3,4]这样的数组，我希望收到一个像"1, 2, 3, 4"这样的字符串。

Answer 1

你可以这样做：

$loss_res;
        if($result['total_loses'][$result['team_list'][$i]]!=''){
          $loss_res=$result['total_loses'][$result['team_list'][$i]];
        } else {
          $loss_res=0;
        }

$draw_res; if($result['team_drawn'][$result['team_list'][$i]]!=''){ $draw_res=$result['team_drawn'][$result['team_list'][$i]]; } else { $draw_res=0; }调用将数字数组转换为字符串数组，let string = array.map { String($0) } .joined(separator: ", ")将它们组合成一个字符串，并在各个字符串之间使用任何分隔符。

或者，如果要在UI中显示这些数字可能需要小数点和/或数千个分隔符，那么最好使用map以本地化格式显示结果：< / p>

joined

对于美国用户而言，这将导致：

1.00,1.10,1.20,1.30

但是对于德国用户来说，它会导致：

1,00,1,10,1,20,1,30

Answer 2

您只需要将整数映射到字符串中，然后将它们与分隔符Dim bricks() As PictureBox Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load bricks = BrickPanel.Controls. OfType(Of PictureBox)(). OrderBy(Function(pb) pb.Name). 'Naive OrderBy... 10 is before 2. I leave it to the OP to fix that part ToArray() End Sub

连接起来

 Dim bricks(54) As PictureBox

 Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
    Dim i As Integer = 0
    For r As Integer = 1 To 10
         For c As Integer = 1 to 11 - r
             bricks(i) = Me.Controls("Row" & r & "_Brick" & c)
             i+=1
         Next c
    Next r
End Sub

Swift：将数组转换为字符串

2 个答案: