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删除[attach][/attach]
$s = "aaadsfdgdg[attach]223[/attach]dgfdhfgjgf[attach]2423[/attach]dgdgfdhf";
$r = preg_replace("/\[.*?\].*?\]/","",$s);
echo $r;
删除数字
$s = "aaadsf2333dgdgdf234dfff";
$r = preg_replace("/[\d]+/","",$s);
echo $r;
删除数字
var s = "aaadsf2333dgdgdf234dfff";
var re = /[\d]+/g;
var r = s.replace(re,"");
alert(r);
删除[attach][/attach]
var s = "aaadsfdgdg[attach]223[/attach]dgfdhfgjgf[attach]2423[/attach]dgdgfdhf";
re = /\[.*?\].*?\]/;
var r = s.replace(re,"");
alert(r);