Microsoft PowerPoint - OPVB2 .ppt—Alan Cooper http://www.cooper.com/alan/father_of_vb.html
• =>VB2.0=>VB3.0=>VB4.0=>VB5.0 =>VB6.0(OOP) =>VB.net()
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VB
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100 PRINT "Program starting“ 110 INPUT H, W 130 IF H > 40 GOTO 400 140 PRINT "Paycheck is ";H*W;" with no overtime." 150 GOTO 500 400 V = H - 40 405 H = H - 40 410 PRINT "Paycheck is ";V*(W*1.5)+H*W;" with "; 420 PRINT V;" hours overtime." 500 PRINT "Program done!" 510 END
BASIC
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(object)
• ( PROPERTY ) : ( )
?
• ?
• ?
: ()
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……




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• caption
• Label1 = “hello” • Label1.caption = “hello”
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value • Image,picturebox picture • Timer Interval

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• ()
• : calculator.vbp calculator.frm hjssub.bas
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• (mousemove)

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•
• : dim [as variant] • :click
dim x, y x=20 y=“10” msgbox x+y VB
msgbox CINT(x)+ CINT(Y) msgbox CSTR(x)+CSTR(Y)

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