randompassword.asp

<%

Dim i, intNum, intUpper, intLower, intRand, strPartPass, genPassword

genPassword = \"\"

Randomize

' 用Randomize生成隨機(jī)種子.

For i = 1 to 7

' 循環(huán)7次，即創(chuàng)建7位隨機(jī)密碼.

intNum = Int(10 * Rnd + 48)

' 0-9的ASCII碼范圍是48-57.

intUpper = Int(26 * Rnd + 65)

' A-Z的ASCII碼范圍是65-90.

intLower = Int(26 * Rnd + 97)

' a-z的ASCII碼范圍是97-123.

intRand = Int(3 * Rnd + 1)

' 對(duì)Int(3 * Rnd + 1)取整得到intRand,會(huì)有3種結(jié)果,用select case判斷當(dāng)前的intRand值是1,2還是3.如果是1顯示數(shù)字,是2顯示大寫字符,是3則顯示小寫字符.

Select Case intRand

Case 1

strPartPass = Chr(intNum)

' 用Chr方法換算到對(duì)應(yīng)的ASCII值.

Case 2

strPartPass = Chr(intUpper)

Case 3

strPartPass = Chr(intLower)

End Select

genPassword = genPassword & strPartPass

Next

randomPassword = genPassword

' 將創(chuàng)建的密碼保存在變量randomPassword中.

%>

<%=\"請(qǐng)保存好，您的密碼是：\" & randomPassword%>

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