找出两个字符串中的不同部分
A1='Abcd'A2='A1Vcd'
需要的结果是'Acd',具体问题是来自于表内字段，请问各位大佬，有无函数可以直接解决，谢谢！
private void button1_Click(object sender, EventArgs e)
{
//# 求2个字符串的最大相似度【字符长度10以内】
string s1 = textBox1.Text.Trim();
string s2 = textBox2.Text.Trim();
if (s1.Length < 10)
{
s1 = s1 + "①②③④⑤⑥⑦⑧⑨⑩";
s1 = s1.Substring(0,10);
}
if (s2.Length < 10)
{
s2 = s2 + "⑪⑫⑬⑭⑮⑯⑰⑱⑲⑳";
s2 = s2.Substring(0,10);
}
textBox1.Text = s1;
textBox2.Text = s2;
StringBuilder sb = new StringBuilder();
sb.Append("字符串1----------------------------------------\r\n");
List<string> List1 = new List<string>();//第一个集合
List<string> List2 = new List<string>();//第二个集合
for (int i = 1; i <= 10; i++)
{
sb.Append(s1.Substring(i - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1));
for (int i2 = 2; i2 <= 10; i2++)
{
if (i < i2)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1));
for (int i3 = 3; i3 <= 10; i3++)
{
if (i2 < i3)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1));
for (int i4 = 4; i4 <= 10; i4++)
{
if (i3 < i4)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1));
for (int i5 = 5; i5 <= 10; i5++)
{
if (i4 < i5)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1));
for (int i6 = 6; i6 <= 10; i6++)
{
if (i5 < i6)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1));
for (int i7 = 7; i7 <= 10; i7++)
{
if (i6 < i7)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1));
for (int i8 = 8; i8 <= 10; i8++)
{
if (i7 < i8)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1) + s1.Substring(i8 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1) + s1.Substring(i8 - 1, 1));
for (int i9 = 9; i9 <= 10; i9++)
{
if (i8 < i9)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1) + s1.Substring(i8 - 1, 1) + s1.Substring(i9 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1) + s1.Substring(i8 - 1, 1) + s1.Substring(i9 - 1, 1));
for (int i10 = 10; i10 <= 10; i10++)
{
if (i9 < i10)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1) + s1.Substring(i8 - 1, 1) + s1.Substring(i9 - 1, 1) + s1.Substring(i10 - 1, 1) + ",");
List1.Add(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + s1.Substring(i5 - 1, 1) + s1.Substring(i6 - 1, 1) + s1.Substring(i7 - 1, 1) + s1.Substring(i8 - 1, 1) + s1.Substring(i9 - 1, 1) + s1.Substring(i10 - 1, 1));
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
sb.Append("\r\n字符串2----------------------------------------\r\n");
for (int i = 1; i <= 10; i++)
{
sb.Append(s2.Substring(i - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1));
for (int i2 = 2; i2 <= 10; i2++)
{
if (i < i2)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) );
for (int i3 = 3; i3 <= 10; i3++)
{
if (i2 < i3)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1));
for (int i4 = 4; i4 <= 10; i4++)
{
if (i3 < i4)
{
sb.Append(s1.Substring(i - 1, 1) + s1.Substring(i2 - 1, 1) + s1.Substring(i3 - 1, 1) + s1.Substring(i4 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1));
for (int i5 = 5; i5 <= 10; i5++)
{
if (i4 < i5)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) );
for (int i6 = 6; i6 <= 10; i6++)
{
if (i5 < i6)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) );
for (int i7 = 7; i7 <= 10; i7++)
{
if (i6 < i7)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1));
for (int i8 = 8; i8 <= 10; i8++)
{
if (i7 < i8)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1) + s2.Substring(i8 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1) + s2.Substring(i8 - 1, 1) );
for (int i9 = 9; i9 <= 10; i9++)
{
if (i8 < i9)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1) + s2.Substring(i8 - 1, 1) + s2.Substring(i9 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1) + s2.Substring(i8 - 1, 1) + s2.Substring(i9 - 1, 1) );
for (int i10 = 10; i10 <= 10; i10++)
{
if (i9 < i10)
{
sb.Append(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1) + s2.Substring(i8 - 1, 1) + s2.Substring(i9 - 1, 1) + s2.Substring(i10 - 1, 1) + ",");
List2.Add(s2.Substring(i - 1, 1) + s2.Substring(i2 - 1, 1) + s2.Substring(i3 - 1, 1) + s2.Substring(i4 - 1, 1) + s2.Substring(i5 - 1, 1) + s2.Substring(i6 - 1, 1) + s2.Substring(i7 - 1, 1) + s2.Substring(i8 - 1, 1) + s2.Substring(i9 - 1, 1) + s2.Substring(i10 - 1, 1));
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
sb.Append("\r\n----------------------------------------");
textBox3.Text = sb.ToString();
bool maxbo = false;
for (int i = 10; i > 0; i--) {
if (maxbo == false) {
var ww1 = List1.Where(w => w.Length == i).GroupBy(m => new {
m
}).
Select(group => new { gro = group.Key }).ToList();
var ww2 = List2.Where(w => w.Length == i).GroupBy(m => new {
m
}).
Select(group => new { gro = group.Key }).ToList();
foreach (var item in ww1)
{
foreach (var item2 in ww2)
{
if (item.gro.m == item2.gro.m)
{
MessageBox.Show("匹配到的第一个最大相似数是：" + item.gro.m);
maxbo = true;
break;
}
}
}
}
}
}
private void Form1_Load(object sender, EventArgs e)
{
textBox1.Text = "Abcd";
textBox2.Text = "A1Vcd";
}
