给大家介绍一个可以控制的随机数,采用asp程序编写,可自行增加和减少随机的字符数,也可以决定显示几位。
已经将相关功能写在一个函数内,直接调用该函数就可以了。下面是相关代码:
<% Function gen_key(digits) dim char_array(50) char_array(0) = "0" char_array(1) = "1" char_array(2) = "2" char_array(3) = "3" char_array(4) = "4" char_array(5) = "5" char_array(6) = "6" char_array(7) = "7" char_array(8) = "8" char_array(9) = "9" char_array(10) = "A" char_array(11) = "B" char_array(12) = "C" char_array(13) = "D" char_array(14) = "E" char_array(15) = "F" char_array(16) = "G" char_array(17) = "H" char_array(18) = "I" char_array(19) = "J" char_array(20) = "K" char_array(21) = "L" char_array(22) = "M" char_array(23) = "N" char_array(24) = "O" char_array(25) = "P" char_array(26) = "Q" char_array(27) = "R" char_array(28) = "S" char_array(29) = "T" char_array(30) = "U" char_array(31) = "V" char_array(32) = "W" char_array(33) = "X" char_array(34) = "Y" char_array(35) = "Z" randomize do while len(output) < digits num = char_array(Int((35 - 0 + 1) * Rnd + 0)) output = output + num loop gen_key = output End Function response.write "<pre>" & gen_key(13) & "</pre>" & vbcrlf %>
这个代码是显示一个13位的随机数。
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