commit bb72fbac83cd1b57eddef0960fe15be0c8413758
Author: cuijingwei@brisonus.com <12345678>
Date: Tue Feb 18 20:39:39 2025 +0800
首次提交
diff --git a/.idea/.gitignore b/.idea/.gitignore
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+# 默认忽略的文件
+/shelf/
+/workspace.xml
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
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+++ b/.idea/inspectionProfiles/profiles_settings.xml
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diff --git a/.idea/misc.xml b/.idea/misc.xml
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diff --git a/.idea/modules.xml b/.idea/modules.xml
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diff --git a/.idea/pythonProject3.iml b/.idea/pythonProject3.iml
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diff --git a/main.py b/main.py
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+++ b/main.py
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+import ctypes
+
+
+# 定义内部结构体
+class InnerStructLevel2(ctypes.Structure):
+ _pack_ = 1
+ _fields_ = [
+ ("inner_field1", ctypes.c_char),
+ ("inner_field2", ctypes.c_double),
+ ("inner_field3", ctypes.c_double),
+ ]
+
+# 定义内部结构体
+class InnerStructLevel1(ctypes.Structure):
+ _pack_ = 1
+ _fields_ = [
+ ("inner_field1", ctypes.c_int),
+ ("inner_field2", ctypes.c_double),
+ ("inner_level2_field3", InnerStructLevel2)
+ ]
+
+
+
+# 定义外部结构体
+class OuterStruct(ctypes.Structure):
+ _pack_ = 1
+ _fields_ = [
+ ("field1", ctypes.c_int),
+ ("nested", InnerStructLevel1), # 嵌套结构体
+ ("field2", ctypes.c_char * 10),
+ ]
+
+
+def get_field_address(struct_instance, field_path):
+ # 分割字段路径
+ fields = field_path.split('.')
+ # 获取起始结构体的基地址
+ current_address = ctypes.addressof(struct_instance)
+ current_type = type(struct_instance)
+
+ # 遍历path的每个field
+ for field in fields:
+ # 在 _fields_ 中查找字段
+ found = False
+ # 遍历当前结构体的所有field
+ for f_name, f_type in current_type._fields_:
+
+ # 如果结构体中的field和当前查找的field一致
+ if f_name == field:
+ found = True
+ # 计算偏移量
+ offset = sum(
+ getattr(current_type, fname).offset for fname, _ in current_type._fields_ if fname == field)
+ current_address += offset
+
+ # 如果还有下一个字段，更新当前类型
+ if field != fields[-1]:
+ # 判断当前的field是不是type，且是不是结构体类型
+ if isinstance(f_type, type) and issubclass(f_type, ctypes.Structure):
+ current_type = f_type
+ else:
+ raise ValueError(f"字段 '{field}' 不是结构体类型")
+ # 跳出当前循环
+ break
+
+ if not found:
+ raise ValueError(f"在结构体中找不到字段 '{field}'")
+
+ return current_address
+
+
+# 使用示例
+def print_all_addresses(struct_instance, prefix=""):
+ struct_type = type(struct_instance)
+
+ for field_name, field_type in struct_type._fields_:
+ full_path = f"{prefix}{field_name}"
+
+ # 如果是结构体类型，递归打印其成员
+ if isinstance(field_type, type) and issubclass(field_type, ctypes.Structure):
+ nested_struct = getattr(struct_instance, field_name)
+ print_all_addresses(nested_struct, f"{full_path}.")
+ else:
+ try:
+ address = get_field_address(struct_instance, field_name)
+ print(f"{full_path} 的地址: {hex(address)}")
+ except ValueError as e:
+ print(e)
+
+
+# 计算成员变量的offset
+def get_filed_offset(struct_instance, field_path):
+ print(type(struct_instance))
+ print(issubclass(type(struct_instance), ctypes.Structure))
+
+ if isinstance(struct_instance, type) and issubclass(struct_instance, ctypes.Structure):
+ base_address = ctypes.addressof(struct_instance)
+
+ field_address = get_field_address(struct_instance, field_path)
+
+ return field_address - base_address
+ return 0
+
+# 测试代码
+if __name__ == "__main__":
+ outer = OuterStruct()
+
+ # # 打印所有字段的地址
+ # print_all_addresses(outer)
+
+ print(get_filed_offset(outer, "nested.inner_level2_field3"))
+
+ # # 获取特定嵌套字段的地址
+ # print(f'0x{ctypes.addressof(outer):08X}')
+ # nested_field_address = get_field_address(outer, "nested.inner_level2_field3")
+ #
+ # print(f"\n直接访问嵌套字段 nested.inner_field2 的地址: {hex(nested_field_address)}")
+ #
+ # # 获取特定嵌套字段的地址
+ # nested_field_address = get_field_address(outer, "nested.inner_level2_field3.inner_field3")
+ #
+ # print(f"\n直接访问嵌套字段 nested.inner_level_field3.inner_field1 的地址: {hex(nested_field_address)}")
diff --git a/param_config.xml b/param_config.xml
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+++ b/param_config.xml
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+
+
+
+
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diff --git a/typetest.py b/typetest.py
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+++ b/typetest.py
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+print(isinstance(int, type))
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