索引超出了数组的范围 [英] Index was outside the bound of array

问题描述

string str = textBox1.Text;
textBox1.Text = "";
int i = str.Length;
for (int j = 0; j < i - 1; j++)
{
    textBox1.Text += Convert.ToString(str[i]);
}

以上是sapce编码....当我要运行而不是错误索引超出数组范围即将来临

Above is back sapce coding....when i am going to run than error "Index was outside the bound of array" is coming

推荐答案

你必须将字符串转换为char数组，然后进行foreach循环。



示例：

You have to convert the string into char array and then do foreach loop.

Example:

if (TextBox1.Text != string.Empty)
            {
                string str = TextBox1.Text;
                char[] array = str.ToCharArray();
                TextBox1.Text = "";

                foreach (char c in array)
                {
                    TextBox1.Text += Convert.ToString(c);
                }
            }

嗨


你不觉得代码会be：

Hi
Don''t you think the code will be :

textBox1.Text += Convert.ToString(str[j]); 

而不是

instead of

textBox1.Text += Convert.ToString(str[i]);

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