804
Chapter 3: ColdFusion Functions
Example
The following example calls the
Randomize
function to seed the random number generator and
generates 10 random numbers. To show the effect of the seed, submit the form with the same
value multiple times.
<h3>Randomize Example</h3>
<!--- Do the following only if the form has been submitted. --->
<cfif IsDefined("Form.myRandomInt")>
<!--- Make sure submitted value is a number and display its value. --->
<cfif IsNumeric(FORM.myRandomInt)>
<cfoutput>
<b>Seed value is #FORM.myRandomInt#</b><br>
</cfoutput><br>
<!--- Call Randomize to seed the random number generator. --->
<cfset r = Randomize(FORM.myRandomInt, "SHA1PRNG")>
<cfoutput>
<b>Random number returned by Randomize(#Form.myRandomInt#,
"SHA1PRNG"):</b><br>
#r#<br>
<br>
<b>10 random numbers generated using the SHA1PRNG algorithm:</b><br>
<cfloop index = "i" from = "1" to = "10" step = "1">
#Rand("SHA1PRNG")#<br>
</cfloop><br>
</cfoutput>
<cfelse>
<p>Please enter a number.
</cfif>
</cfif>
<!--- Form to specify the seed value. --->
<form action="#CGI.SCRIPT_NAME#" method="post">
<p>Enter a number to seed the randomizer:
<input type = "Text" name = "MyRandomInt" value="12345">
<p><input type = "Submit" name = "">
</form>
Содержание COLFUSION MX 7 - INSTALLING AND USING COLDFUSION MX
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Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
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Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
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Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
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