Html文本转换为实体编号

function toHtmlNumber(content) {
	if (content != null) {
		var html = "";
		for ( i = 0; i < content.length; i++) {
			var temp = content.charCodeAt(i);
			html += ("&#" + temp + ";");
		}
		return html;
	}
	return content;
}

 

JavaScript charCodeAt()方法