我的代码给出的问题是“索引是否超出了界限的范围”我需要帮助？/
问题描述：
try
{
if (txtB_Passowrd.Text != "")
{
string str;
int chunkLength = 8;
str = txtB_Passowrd.Text;
for (int l = 0; l < str.Length; l += chunkLength)
{
if (chunkLength + l > str.Length)
chunkLength = str.Length - l;
// MessageBox.Show(" "+str.Substring(l, chunkLength));
// richTextBox2.Text= str.Substring(i, chunkLength);
listBox1.Items.Add(str.Substring(l, chunkLength));
}
int r = listBox1.Items.Count;
// MessageBox.Show("Test"+r);
int f = 0;
while (f<r)
{
viewSubKeysToolStripMenuItem1.Enabled = true;
f++;
name = BinaryConversion.GetPassword(listBox1.Items[f].ToString());
// txtB_Passowrd.Text = name;
if (f == r)
break;
txtB_64BitBinary.Text = BinaryConversion.ConvertToBinary64(name);
txtB_64Binary_Parity.Text = BinaryConversion.parityBitAdd(name);
Bit64Array = txtB_64Binary_Parity.Text;
Bit56Array = Permutation.Pc1(Bit64Array);
for (int i = 0; i < 56; i++)
{
txtB_56BitBinary.Text = txtB_56BitBinary.Text + Bit56Array[i];
}
for (int K = 0; K < 28; K++)
{
L28[K] = Bit56Array[K];
R28[K] = Bit56Array[K + 28];
}
int round = 1;
for (int i = 0; i < 16; i++)
{
if (round == 1 || round == 2 || round == 9 || round == 16)
{
L28 = Permutation.LeftShift1Bit(L28);
R28 = Permutation.LeftShift1Bit(R28);
}
else
{
for (int j = 0; j < 2; j++)
{
L28 = Permutation.LeftShift1Bit(L28);
R28 = Permutation.LeftShift1Bit(R28);
}
}
for (int j = 0; j < 28; j++)
{
Bit56Array[j] = L28[j];
Bit56Array[j + 28] = R28[j];
}
SecretK16Keys[i] = Permutation.Pc2(Bit56Array);
round++;
}
}
}
else
{
MessageBox.Show("You Must Enter Password", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception obj)
{
MessageBox.Show(obj.Message.ToString(), "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
答
f++;
name = BinaryConversion.GetPassword(listBox1.Items[f].ToString());
It可能是那条线，它可能是你的其他线的负载，但你在使用之前递增f。所以这可能会抛出你的错误，因为f等于listBox1.Items.Count的计数值，导致你的错误，因为它不应该被允许增加到那个值。
It could be that line there,it could be a load of your other lines, but you are incrementing f before you use it. So this could be throwing your error as f becomes equal to the count value of listBox1.Items.Count, resulting in your error as it should not be allowed to increase to that value.