http%253A%252F%252F编码如何还原？这段%253A%252F%252F编码是被二次编码后的结果，所以二次解码后即可还原URL，新手站长网告诉你%253A%252F%252F解码后是://

%253A%252F%252F解码URL还原

URL解码第一次：%253A%252F%252FUrlDecode解码后为%3A%2F%2F
URL解码第二次：%3A%2F%2FUrlDecode解码后为://

新手站长网分享URL编码/解码工具，UrlEncode编码+UrlDecode解码