Base64编解码函数

function test_base64_decode() returns (bool , string memroy)
{
    string memory name = "aHR0cDovL3Rlc3RfYmFzZTY0IH4hQCMkJQ==";
    return base64_decode(name);
}

function test_base64_encode() returns (bool , string memroy)
{
    string memory name = "http://test_base64 ~!@#$%";
    return base64_encode(name);
}

base64_decode(string data) returns(bool result, string memory data);

base64_encode(string data) returns(bool result, string memory data) ;