diff --git a/src/MeoAssistant/Task/Sub/ProcessTask.cpp b/src/MeoAssistant/Task/Sub/ProcessTask.cpp
index a4e577b1b6..7711bfea70 100644
--- a/src/MeoAssistant/Task/Sub/ProcessTask.cpp
+++ b/src/MeoAssistant/Task/Sub/ProcessTask.cpp
@@ -135,24 +135,7 @@ bool ProcessTask::_run()
 
         int& exec_times = m_exec_times[cur_name];
 
-        int max_times = m_cur_task_ptr->max_times;
-        TimesLimitType limit_type = TimesLimitType::Pre;
-        {
-            std::string cur_base_name = cur_name;
-            while (true) {
-                if (auto iter = m_times_limit.find(cur_base_name); iter != m_times_limit.cend()) {
-                    max_times = iter->second.times;
-                    limit_type = iter->second.type;
-                    break;
-                }
-                if (size_t at_pos = cur_base_name.find('@'); at_pos == std::string::npos) {
-                    break;
-                }
-                else {
-                    cur_base_name = cur_base_name.substr(at_pos + 1);
-                }
-            }
-        }
+        auto [max_times, limit_type] = calc_time_limit();
 
         if (limit_type == TimesLimitType::Pre && exec_times >= max_times) {
             info["what"] = "ExceededLimit";
@@ -299,6 +282,21 @@ bool asst::ProcessTask::on_run_fails()
     return run();
 }
 
+std::pair<int, asst::ProcessTask::TimesLimitType> asst::ProcessTask::calc_time_limit() const
+{
+    // eg. "C@B@A" 的 max_times 取 "C@B@A", "B@A", "A" 中有 max_times 定义的最靠前者
+    for (std::string cur_base_name = m_cur_task_ptr->name;;) {
+        if (auto iter = m_times_limit.find(cur_base_name); iter != m_times_limit.cend()) {
+            return { iter->second.times, iter->second.type };
+        }
+        size_t at_pos = cur_base_name.find('@');
+        if (at_pos == std::string::npos) {
+            return { m_cur_task_ptr->max_times, TimesLimitType::Pre };
+        }
+        cur_base_name = cur_base_name.substr(at_pos + 1);
+    }
+}
+
 json::value asst::ProcessTask::basic_info() const
 {
     return AbstractTask::basic_info() |
diff --git a/src/MeoAssistant/Task/Sub/ProcessTask.h b/src/MeoAssistant/Task/Sub/ProcessTask.h
index 822b663c2c..763e06ba9f 100644
--- a/src/MeoAssistant/Task/Sub/ProcessTask.h
+++ b/src/MeoAssistant/Task/Sub/ProcessTask.h
@@ -6,7 +6,7 @@
 namespace asst
 {
     // 流程任务，按照配置文件里的设置的流程运行
-    class ProcessTask : public AbstractTask
+    class ProcessTask final : public AbstractTask
     {
     public:
         enum class TimesLimitType
@@ -40,6 +40,7 @@ namespace asst
         virtual bool on_run_fails() override;
         virtual json::value basic_info() const override;
 
+        std::pair<int, TimesLimitType> calc_time_limit() const;
         void exec_click_task(const Rect& matched_rect);
         void exec_swipe_task(ProcessTaskAction action);
         void exec_slowly_swipe_task(ProcessTaskAction action);