GUI.TextField只接受数字的解决方案

using System.Text.RegularExpressions;

private string onlyNumbers = "";

void OnGUI()
{
onlyNumbers= GUI.TextField(new Rect(30, 110, 30, 20), onlyNumbers, 3);
onlyNumbers= Regex.Replace(onlyNumbers, "[^0-9]", "");
}

string inputstring = "";
    void OnGUI()
    {
        inputstring = GUI.TextField(new Rect(0, 0, 100, 100), inputstring);
        inputstring = Regex.Replace(inputstring, "[^0-9]", "");
        GUI.Label(new Rect(100, 100, 100, 100), inputstring);
    }