在控制台中输出DataTable的简单实现

有时候我们需要在控制台中打印DataTable，这里提供一个自己写的简单函数给他人做参考，如果有任何意见建议，不吝赐教。

实际输出如图：

 1 /// <summary>
 2         /// Print a DataTable on to the console
 3         /// </summary>
 4         /// <param name="table">the table to be printed</param>
 5         public static void PrintTable(DataTable table)
 6         {            
 7             // print head
 8             PrintLine(12 * table.Columns.Count);
 9             foreach (DataColumn col in table.Columns)
10             {
11                 Console.Write(string.Format("{0,12}",col.Caption));
12             }
13             Console.Write("\n");
14             PrintLine(12 * table.Columns.Count);
15 
16             // print rows
17             for (int i = 0; i < table.Rows.Count; i++)
18             {
19                 for (int j = 0; j < table.Columns.Count; j++)
20                 {
21                     Console.Write(string.Format("{0,12}",table.Rows[i][j].ToString()));
22                 }
23                 Console.Write("\n");
24             }
25             PrintLine(12 * table.Columns.Count,"-");
26         }
27 
28         /// <summary>
29         /// Print a line with specific char on to the console
30         /// </summary>
31         /// <param name="length">count of the char to be printed</param>
32         /// <param name="lineChar">the char to be printed, default is "="</param>
33         private static void PrintLine(int length, string lineChar = "=")
34         {
35             string line = string.Empty;            
36             for (int i = 0; i < length; i++)
37             {
38                 line += lineChar;
39             }
40             Console.WriteLine(line);
41         }