怎样把\替换成\\

Question

string ss="\\zhy\printer"
ss.Replace("\","\\");
编译不过!

Answer 1

string ss = @"\\zhy\printer";
string ret = ss.Replace(@"\", @"\\");

Answer 2

ss.Replace("\\","\\\\");
            |
         转移字符

Answer 3

string ss="\\zhy\\printer" 
string str;
str = ss.Replace("\\","\\\\");
需要重新赋值给一个字符串的ss.Replace("\\","\\\\")并不改变ss的值的

Answer 4

得有@，要不第一句话就能不过哦！
 string ss = @"\\zhy\printer";
 ss = ss.Replace("\、", "\\\\");

Answer 5

  
        public void executeSQL(String sql)
        {            DataSet ds = new DataSet();
            conn = new MySql.Data.MySqlClient.MySqlConnection(connectionString);
            try
            {        
                
               
                MySql.Data.MySqlClient.MySqlCommand cmd=conn.CreateCommand();
                conn.Open();
                cmd.CommandText = sql;
                cmd.ExecuteNonQuery();
              
                
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                conn.Close();
                conn.Dispose();
                
            }        }string sql = "update part_tbl set print_service='\\\\ZYM\\HP LaserJet 4LC' where full_name='后厨'";
            
                executeSQL(sql); 这样插入进去不正确,少了两个"\",如果在查询分析器中执行没有问题,是咋回事?

Answer 6

      string sy = @"\\zhy\printer";
      sy = sy.Replace(@"\\", "-");
      sy = sy.Replace(@"\", @"\\");
      sy = sy.Replace("-", @"\\");