用js对HTML转义和html反转义

//HTML转义

function HTMLEncode(html) {

var temp = document.createElement("div");

(temp.textContent != null) ? (temp.textContent = html) : (temp.innerText = html);

var output = temp.innerHTML;

temp = null;

return output;

}

var tagText = "<p><b>123&456</b></p>";

console.log(HTMLEncode(tagText));//&lt;p&gt;&lt;b&gt;123&amp;456&lt;/b&gt;&lt;/p&gt;

//HTML反转义

function HTMLDecode(text) {

var temp = document.createElement("div");

temp.innerHTML = text;

var output = temp.innerText || temp.textContent;

temp = null;

return output;

}

var tagText = "<p><b>123&456</b></p>";

var encodeText = HTMLEncode(tagText);

console.log(encodeText);//&lt;p&gt;&lt;b&gt;123&amp;456&lt;/b&gt;&lt;/p&gt;

console.log(HTMLDecode(encodeText)); //<p><b>123&456</b></p>