你這是vb.net的代碼,vb中不允許那么寫:Dimstrdx()AsString={"0","0","0"}'定義個數組,從后面的值能看的出最大下標是2,也就是strdx(0),strdx(1)和strdx(2),3個的默認值都為0Dimcalcount1AsString="0"'定義個字符串變量Dimcalcount2AsString="0"DimstrvalueAsBoolean=False'定義strvalue為bool值,改類型變量只有true和false2種值Ifstrdx(0)="0"ThenTextBox1.Text=strdx(0)&"."&這是字符串連接符號,和"+"的區別是,他把左右2邊的內容直接連接的,而"+"可能會編程運算符,例如2&3="23"而2+3=5ElseIfstrvalue=FalseThenstrdx(0)=strdx(0)&"0"TextBox1.Text=strdx(0)&"."strvalue=TrueElsestrdx(0)=strdx(0)&"0"TextBox1.Text=strdx(0)SelectCasecalcount1'這里開始是分支語句Case"+"TextBox1.Text=Str(Val(strdx(1))+Val(strdx(0)))