try:
double d=Convert.ToDouble(tbInput1.Text)+Convert.ToDouble(tbInput2);
====>
double d=Convert.ToDouble(tbInput1.Text)+Convert.ToDouble(tbInput2.Text);
double d=Convert.ToDouble(tbInput1.Text)+Convert.ToDouble(tbInput2);
====>
double d=Convert.ToDouble(tbInput1.Text)+Convert.ToDouble(tbInput2.Text);
按照1楼的方法试试
double d=Convert.ToDouble(tbInput1.Text)+Convert.ToDouble(tbInput2);
====>
double d=Convert.ToDouble(tbInput1.Text)+Convert.ToDouble(tbInput2.Text);
我不是从asp转过来的,是从php转过来的,呵呵。