在窗体上从左到右有Text1、Text2两个文本框，如图所示，要求程序运行时，在Text1中输入1个分数后按回车键，则判断分数的合法性，若分数为0～100中的1个数，则光标移到Text2中；否则光标不动，并弹出对话框显示“分数错”。下列程序中正确的是______。

A．Private Sub Text1_KeyPress(KeyAscii As Integer)If KeyAscii=13 Then"回车符的ASCII码是13a=Val(Text1)If a＞=0 Or a＜=100 ThenText2.SetFocusElscText1.SetFocus: MsgBox("分数错")End IfEnd IfEnd Sub
B．Private Sub Text1_KeyPress(KeyAscii As Integer)If KeyAseii=13 Then"回车符的ASCII码是13a=Val(Text1)If a＞=0 And a＜=100 ThenText1.SetFocusElseText2.SetFocus: MsgBox("分数错")End IfEnd IfEnd Sub
C．Private Sub Text1_KeyPress(KeyAscii As Integer)If KeyAscii=13 Then"回车符的ASCII码是13a=Val(Text1)If a＜0 And a＞100 ThenText2.SetFocusElseText1.SetFocus: MsgBox("分数错")End IfEnd IfEnd Sub
D．Private Sub Text1_KeyPress(KeyAscii As Integer)If KeyAscii=13 Then"回车符的ASCII码是13a=Val(Text1)If a＞=0 And a＜=100 ThenText2.SetFocusElseText1.SetFocus: MsgBox("分数错")End IfEnd IfEnd Sub