1
/// <summary>
2
/// 判断是否是数字
3/// </summary>
4/// <param name="str">字符串</param>
5
/// <returns></returns>
6
private bool IsNumeric(string str)
7{
8if (str == null || str.Length == 0)
9return false;
10System.Text.ASCIIEncoding ascii = new System.Text.ASCIIEncoding();
11byte[] bytestr = ascii.GetBytes(str);
12foreach (byte c in bytestr)
13
{
14if (c < 48 || c > 57)
15{
16return false;
17
}
18}
19return true;
20}
21
/// <summary>
2
/// 判断是否是数字3
/// </summary>4
/// <param name="str">字符串</param>5
/// <returns></returns>6
private bool IsNumeric(string str)7
{
8
if (str == null || str.Length == 0)9
return false;10
System.Text.ASCIIEncoding ascii = new System.Text.ASCIIEncoding();11
byte[] bytestr = ascii.GetBytes(str);12
foreach (byte c in bytestr)13
{
14
if (c < 48 || c > 57)15
{16
return false;17
}18
}19
return true;20
}21