我想写一个程序,可以替换文本并替换正则表达式文本。 所以我有正则表达式替换麻烦一个part..I'm真正的菜鸟:)c#正则表达式替换问题
private void button2_Click(object sender, EventArgs e)
{
if (File.Exists(textBox1.Text))
{
//这是常规的更换:
if (checkBox1.Checked == false)
{
StreamReader sr = new StreamReader(textBox1.Text);
StreamWriter sw = new StreamWriter(textBox1.Text.Replace(".", "_new."));
string cur = "";
do
{
cur = sr.ReadLine();
cur = cur.Replace(textBox2.Text, textBox3.Text);
sw.WriteLine(cur);
}
while (!sr.EndOfStream);
sw.Close();
sr.Close();
MessageBox.Show("Finished, the new file is in the same directory as the old one");
}
//这是正则表达式替换:
if (checkBox1.Checked == true)
{
System.Text.RegularExpressions.Regex g = new Regex(@textBox2.Text);
using (StreamReader r = new StreamReader(textBox1.Text))
{
StreamReader sr = new StreamReader(textBox1.Text);
StreamWriter sw = new StreamWriter(textBox1.Text.Replace(".", "_new."));
string cur = "";
do
{
cur = sr.ReadLine();
cur = cur.Replace(textBox2.Text, textBox3.Text);
sw.WriteLine(cur);
}
while (!sr.EndOfStream);
sw.Close();
sr.Close();
}
MessageBox.Show("Finished, the new file is in the same directory as the old one");
}
button2.Enabled = false;
}
if (File.Exists(textBox1.Text) == false)
{
MessageBox.Show("Please select a file and try again.");
}
}
这里没有问题。请具体说明问题所在。如果您收到例外情况,请提供详细信息以及投放位置。 – Jay 2011-12-30 14:24:41
据我所见,除了实例化你的正则表达式之外,你没有做任何事... – canon 2011-12-30 14:28:17
问题是什么?我很想回应,因为我认为我看到了这个问题,但我会表现出克制......没有不好的非问题的回报...... – 2011-12-30 14:29:42