Question

单击“打印”按钮时，我需要将这些名称打印到输出标签上。现在，当我单击按钮打印名称时，它弹出3行，表示System.String[].如何打印这些名称而不是System.String[]消息？谢谢！

string[] names = new string[] {"Kevin", "Anthony", "Mike", "Allan" };
private void button1_Click(object sender, EventArgs e)
{
    //taverse the array and dispalay the scores into the label
    string output = "";
    for(int i=0;i<=names.Length; i++)
    {
        output = output + names + "\n";
    }
    displayLabel.Text = output;
}

Answer 1

你忘了添加索引。

for (int i = 0; i < names.Length; i++){
    output = output + names[i] + "\n";
}

Answer 2

String.Join()会将数组中的字符串元素组合成一个带有分隔字符的新单字符串。

string.Join("\n", names);

Answer 3

试试这个解决方案

<div *ngFor="let w of widgets">
    <div #elem [id]="w.componentName"></div>
</div>

Answer 4

您只能使用这三行代码：

            var names = new string[] { "Kevin", "Anthony", "Mike", "Allan" };
            var output = names.Aggregate("", (current, name) => current + (name + Environment.NewLine));
            displayLabel.Text = output;

如何将字符串打印到数组

4 个答案: