echo '第三个' . $response3;
$pattern = "正则怎么写";
preg_match($pattern, $response3, $matches);
$result = $matches[1];
echo '加密的数据' . $result;
$response3为{"code":200,"data":"\"{\"C-Response-Desc\":\"success\",\"C-API-Status\":\"00\",\"C-Response-Body\":\"{\\\\\"result\\\\\":\\\\\"5jvSk7ihUR0svPqHJZfIrWdj3t7HkPRHZLmefBNVkayqcQm/ZThYtcBxqKhl7LjhrvdRj9NNSnUK8VkY+yOP6PH+HGEc3DdqxqO/q1+g5ks=\\\\\"}\",\"C-Response-Code\":\"000000000000\"}\""}
求写出正则表达式
