function getWords(){ php
//字符數組 html
$arr=array(0=>'a',1=>'b',2=>'c',3=>'d',4=>'e',5=>'f',6=>'g',7=>'h', 8=>'i',9=>'j',10=>'k',11=>'l',12=>'m',13=>'n',14=>'o',15=>'p', 16=>'q',17=>'r',18=>'s',19=>'t',20=>'u',21=>'v',22=>'w',23=>'x', 24=>'y',25=>'z'); $str=''; for($i=0;$i<4;$i++){ $evl=rand(0,25); //echo $str.' -- '.$evl; $str=$str.' '.$arr[$evl]; } return $str; } $str=getWords(); show($str); ?>