F12 看链接成这样
misc.php?mod=seccode&action=update&idhash=cSETT0iI&0.9774032805931648&modid=undefined


代码这样

if($('seccode_cSETT0iI')) { if(!$('vseccode_cSETT0iI')) { var sectpl = seccheck_tpl['cSETT0iI'] != '' ? seccheck_tpl['cSETT0iI'].replace(//g, 'codecSETT0iI') : ''; var sectplcode = sectpl != '' ? sectpl.split('') : Array('
',': ','
',''); var string = '' + sectplcode[0] + '验证码' + sectplcode[1] + '' + ' 换一个' + '' + sectplcode[2] + '输入下图中的字符
' + sectplcode[3]; evalscript(string); $('seccode_cSETT0iI').innerHTML = string; } else { var string = '输入下图中的字符
'; evalscript(string); $('vseccode_cSETT0iI').innerHTML = string; } }