<script language="javascript" type="text/javascript">
var str='<script language="javascript" type="text/javascript">alert("执行吧,大哥!");</script>';
</script>
上面的代码不会运行,这倒没关系,可以有使它运行的方式。
但是问题就出在,居然无法给str变量赋值为JS代码的值。碰到这个代码显示就有问题,执行更不用说了。不知道哪位大虾有过类似经验,告之一下如何解决为好?
代码必须是在这里赋值,不能通过输入框获取,通过输入框获取代码可以正常执行。
问题是直接赋值就报错!!
<script language="javascript" type="text/javascript">alert("执行吧,大哥!");</script>
这段字符串,可以解成如下三段:var str1='<script language="javascript" type="text/javascript';
var str2='">alert("执行吧,大哥!");<';
var str3='/script>';这样就没问题了,执行的时候再把这三个字符串加起来!
问题是解决了,不过这种方法实在是太变态了,自己都觉得思想怎么跳跃成这样了?
<script language="javascript" type="text/javascript">
var str='<script language="javascript" type="text/javascript">alert("执行吧,大哥!");<\/script>';
document.write(str);
</script>
unescape('%3Cscript%20language%3D%22javascript%22%20type%3D%22text/javascript%22%3Ealert%28%22%u6267%u884C%u5427%uFF0C%u5927%u54E5%uFF01%22%29%3B%3C/script%3E')
如:var s = "</script>";这个就不行了
var s = '<script type="text/javascript">';就不需要
<script language="javascript" type="text/javascript">
<!--
var global_html_pool = [];
var global_script_pool = [];
var global_script_src_pool = [];
var global_lock_pool = [];
var innerhtml_lock = null;
var document_buffer = "";function set_innerHTML(obj_id, html, time)
{
alert(document.frmScript.script.value);
if (innerhtml_lock == null)
{
innerhtml_lock = obj_id;
}
else if (typeof(time) == "undefined")
{
global_lock_pool[obj_id + "_html"] = html;
window.setTimeout("set_innerHTML('" + obj_id + "', global_lock_pool['" + obj_id + "_html']);", 10);
return;
}
else if (innerhtml_lock != obj_id)
{
global_lock_pool[obj_id + "_html"] = html;
window.setTimeout("set_innerHTML('" + obj_id + "', global_lock_pool['" + obj_id + "_html'], " + time + ");", 10);
return;
}function get_script_id()
{
return "script_" + (new Date()).getTime().toString(36)
+ Math.floor(Math.random() * 100000000).toString(36);
}document_buffer = "";
document.write = function (str)
{
document_buffer += str;
}
document.writeln = function (str)
{
document_buffer += str + "\n";
}global_html_pool = [];var scripts = [];
html = html.split(/<\/script>/i);
for (var i = 0; i < html.length; i++)
{
global_html_pool[i] = html[i].replace(/<script[\s\S]*$/ig, "");
scripts[i] = {text: '', src: '' };
scripts[i].text = html[i].substr(global_html_pool[i].length);
scripts[i].src = scripts[i].text.substr(0, scripts[i].text.indexOf('>') + 1);
scripts[i].src = scripts[i].src.match(/src\s*=\s*(\"([^\"]*)\"|\'([^\']*)\'|([^\s]*)[\s>])/i);
if (scripts[i].src)
{
if (scripts[i].src[2])
{
scripts[i].src = scripts[i].src[2];
}
else if (scripts[i].src[3])
{
scripts[i].src = scripts[i].src[3];
}
else if (scripts[i].src[4])
{
scripts[i].src = scripts[i].src[4];
}
else
{
scripts[i].src = "";
}
scripts[i].text = "";
}
else
{
scripts[i].src = "";
scripts[i].text = scripts[i].text.substr(scripts[i].text.indexOf('>') + 1);
scripts[i].text = scripts[i].text.replace(/^\s*<\!--\s*/g, "");
}
}var s;
if (typeof(time) == "undefined")
{
s = 0;
}
else
{
s = time;
}var script, add_script, remove_script;for (var i = 0; i < scripts.length; i++)
{
var add_html = "document_buffer += global_html_pool[" + i + "];\n";
add_html += "document.getElementById('" + obj_id + "').innerHTML = document_buffer;\n";
script = document.createElement("script");
if (scripts[i].src)
{
script.src = scripts[i].src;
if (typeof(global_script_src_pool[script.src]) == "undefined")
{
global_script_src_pool[script.src] = true;
s += 2000;
}
else
{
s += 10;
}
}
else
{
script.text = scripts[i].text;
s += 10;
}
script.defer = true;
script.type = "text/javascript";
script.id = get_script_id();
global_script_pool[script.id] = script;
add_script = add_html;
add_script += "document.getElementsByTagName('head').item(0)";
add_script += ".appendChild(global_script_pool['" + script.id + "']);\n";
window.setTimeout(add_script, s);
remove_script = "document.getElementsByTagName('head').item(0)";
remove_script += ".removeChild(document.getElementById('" + script.id + "'));\n";
remove_script += "delete global_script_pool['" + script.id + "'];\n";
window.setTimeout(remove_script, s + 10000);
}var end_script = "if (document_buffer.match(/<\\/script>/i)) {\n";
end_script += "set_innerHTML('" + obj_id + "', document_buffer, " + s + ");\n";
end_script += "}\n";
end_script += "else {\n";
end_script += "document.getElementById('" + obj_id + "').innerHTML = document_buffer;\n";
end_script += "innerhtml_lock = null;\n";
end_script += "}";
window.setTimeout(end_script, s);
}
-->
</script>