Variable reputation
C # syntax
INT X;
String S;
String S1, S2;
Object O;
Object obj = new object ();
Public String Name;
VB grammar
DIM X as integer
DIM S As String
DIM S1, S2 AS STRING
DIM O 'IMPLICITLY Object
DIM OBJ AS New Object ()
Public Name As String
2 statement
C #:
Response.write ("Chinese C # Technology Station");
VB:
Response.write ("Chinese C # Technology Station")
3. Notes statement
// Chinese C # Technology Station
/ *
Welcome to visit
,
Chinese C # Technology Station
* /
VB:
'Chinese C # Technology Station
4. Get the variable transferred by the URL
C #:
String s = request.QueryString ["name"];
String value = Request.cookies ["key"];
VB:
DIM S, Value As String
s = Request.QueryString ("Name")
Value = Request.Cookies ("key"). Value
5. Declare attribute
C #:
PUBLIC STRING NAME {
Get {
...
Return ...
}
SET {
... = Value;
}
}
VB:
Public Property Name As String
Get
...
Return ...
END GET
Set
... = Value;
End set
End Property
6. array
C #
String [] a = new string [3];
a [0] = "1";
a [1] = "2";
a [2] = "3";
//Two-dimensional array
String [] [] a = new string [3] [3];
a [0] [0] = "1";
a [1] [0] = "2";
a [2] [0] = "3";
VB:
DIM A (3) AS STRING
A (0) = "1"
A (1) = "2"
a (2) = "3"
DIM A (3, 3) AS String
A (0, 0) = "1"
A (1,0) = "2"
A (2,0) = "3"
DIM A () AS STRING
A (0, 0) = "1"
A (1,0) = "2"
A (2,0) = "3"
Dim A (,) AS STRING
A (0, 0) = "1"
A (1,0) = "2"
A (2,0) = "3"
7 variable initialization
C #:
String s = "Hello World";
INT i = 1
Double [] a = {3.00, 4.00, 5.00};
VB:
DIM S as string = "Hello World"
DIM i as integer = 1
DIM A () as double = {3.00, 4.00, 5.00}
8; judgment statement (if statement) IF (request.queryString! = Null) {
...
}
VB:
If not (Request.QueryString = NULL)
...
END IF
9. Branch statement (CASE statement)
C #:
Switch (firstname) {
Case "john":
...
Break;
Case "Paul":
...
Break;
Case "rinco":
...
Break;
}
VB:
SELECT (FirstName)
Case "john":
...
Case "Paul": ...
Case "rinco":
...
End SELECT
10 for loop statement
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 cycle
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 string connection
C #:
String S1;
String S2 = "Hello";
S2 = "world";
S1 = S2 "!!!";
VB:
DIM S1, S2 AS STRING
S2 = "Hello"
S2 & = "world"
S1 = S2 & "!!!"
Declaration event
C #:
Void MyButton_Click (Object Sender,
Eventargs e) {
...
}
VB:
Sub mybutton_click (sender as object,
E as eventargs)
...
End Sub
13 Declaration 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 data type conversion
C #
INT i = 3;
String s = i.to.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 categories of statements and inheritance
C #:
Using system;
Namespace myspace {
PUBLIC CLASS foo: bar {
INT X;
Public foo () {x = 4;
Public void add (int x) {this.x = x;} public int getnum () {returnix}
}
}
VB:
Imports system
Namespace MySpace
Public Class Foo: Inherits Bar
DIM X as integer
Public Sub New ()
Mybase.new ()
x = 4
End Sub
Public Sub Add (x as integer)
Me.x = me.x x
End Sub
Public function getnum () AS Integer
Return X
END FUNCTION
END CLASS
End Namespace
16 statement of the main function
C #:
Using system;
Public class consolecs {
Public consolecs () {
Console.writeline ("Object Created");
}
Public static void main (String [] args) {
Console.writeline ("Hello World");
Consolecs ccs = new consolecs ();
}
}
VB
Imports system
Public Class Consolevb
Public Sub New ()
Mybase.new ()
Console.writeLine ("Object Created")
End Sub
Public Shared Sub Main ()
Console.Writeline ("Hello World")
DIM CVB As ConsolevB
CVB = new consolevb ()
End Sub
END CLASS
17 standard module
C #
Using system;
Public class module {
Public static void main (String [] args) {
Console.writeline ("Hello World");
}
}
VB:
Imports system
Public module consolevb
Public Sub Main ()
Console.Writeline ("Hello World")
End Sub
End module
