asp+语法介绍(一)

asp+语法介绍(一)(3)
10 For循环语句
C#
for (int i=0; i<3; i++)
  a(i) = "test";
VB:
  Dim I As Integer
  For I = 0 To 2
    a(I) = "test"
  Next

11 While 循环
C#:
int i = 0;
while (i<3) {
  Console.WriteLine(i.ToString());
  i += 1;
}
VB:
Dim I As Integer
I = 0
Do While I < 3
  Console.WriteLine(I.ToString())
  I = I + 1
Loop
12 字符串连接
C#:
String s1;
String s2 = "hello";
s2 += " world";
s1 = s2 + " !!!";
VB:
Dim s1, s2 As String
s2 = "hello"
s2 &= " world"
s1 = s2 & " !!!"


声明事件
C#:
void MyButton_Click(Object sender,
                            EventArgs E) {
...
}
VB:
Sub MyButton_Click(Sender As Object,
                            E As EventArgs)
...
End Sub


13 声明Object
C#
MyObject obj = (MyObject)Session["Some Value"];
IMyObject iObj = obj
VB:
Dim bj As MyObject
Dim iObj As IMyObject
obj = Session("Some Value")
iObj = CType(obj, IMyObject)


14 数据类型转换
C#
int i = 3;
String s = i.ToString();
double d = Double.Parse(s);
VB:
Dim i As Integer
Dim s As String
Dim d As Double

i = 3
s = i.ToString()
d = CDbl(s)


15 类的声明和继承
C#:
using System;

namespace MySpace {

  public class Foo : Bar {

    int x;

    public Foo() { x = 4; }