diff --git a/tests/common.py b/tests/common.py
new file mode 100644
index 0000000..8a34c85
--- /dev/null
+++ b/tests/common.py
@@ -0,0 +1,17 @@
+import sys
+import os
+
+# 注意： 只在 tests 目录下的 测试文件中使用
+# 设置项目目录 为搜索目录
+
+
+# 通用逻辑：添加项目根目录到搜索路径
+def add_project_root_to_path():
+    # 获取项目根目录（tests的上级目录）
+    project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+    if project_root not in sys.path:
+        sys.path.append(project_root)
+
+
+# 自动执行（导入时就添加路径）
+add_project_root_to_path()
diff --git a/tests/test_emv.py b/tests/test_emv.py
new file mode 100644
index 0000000..2293834
--- /dev/null
+++ b/tests/test_emv.py
@@ -0,0 +1,234 @@
+from common import *
+
+from PySide6.QtWidgets import (
+    QApplication,
+    QWidget,
+    QVBoxLayout,
+    QHBoxLayout,
+    QSpacerItem,
+    QSizePolicy,
+    QLabel,
+)
+from PySide6.QtCore import Qt, QTimer, Signal
+from qfluentwidgets import (
+    PushButton,
+    LineEdit,
+    BodyLabel,
+    MessageBox,
+    setTheme,
+    Theme,
+)
+import sys
+
+
+class DOWidget(QWidget):
+    # open开关按下
+    open_btn_clicked_sig = Signal()
+
+    # close开关按下
+    close_btn_clicked_sig = Signal()
+
+    def __init__(self, title: str, parent=None):
+        super().__init__(parent)
+        self.title = title  # DO名称（如"DO1"）
+        self.is_open = False  # 初始状态：关闭
+        self.__initWidget()
+
+    def __initWidget(self):
+
+        # 创建控件
+        self.__createWidget()
+
+        # 设置样式
+        self.__initStyles()
+
+        # 设置布局
+        self.__initLayout()
+
+        # 绑定
+        self.__bind()
+
+    def __createWidget(self):
+        # Do按钮名称的 label
+        self.title_label = BodyLabel(self.title)
+        self.title_label.setAlignment(Qt.AlignCenter)
+
+        # 状态指示灯
+        self.status_light = QLabel()
+        self.status_light.setFixedSize(40, 40)
+
+        # 打开和关闭按钮
+        self.open_btn = PushButton("打开")
+        self.close_btn = PushButton("关闭")
+
+    def __initStyles(self):
+        # 状态指示灯样式（初始颜色：灰色（关闭））
+        self.status_light.setStyleSheet(
+            """
+            border-radius: 20px;  
+            background-color: gray; 
+        """
+        )
+
+    def __initLayout(self):
+        # 垂直布局：标题 → 状态灯 → 按钮
+        main_layout = QVBoxLayout(self)
+        main_layout.setContentsMargins(15, 15, 15, 15)  # 内边距
+        main_layout.setSpacing(12)  # 控件间距
+
+        # 按钮布局
+        btn_layout = QHBoxLayout()
+        btn_layout.setSpacing(8)
+        btn_layout.addWidget(self.open_btn)
+        btn_layout.addWidget(self.close_btn)
+
+        main_layout.addWidget(self.title_label)  # 添加按钮名称
+        main_layout.addWidget(self.status_light, alignment=Qt.AlignCenter)  # 添加指示灯
+        main_layout.addLayout(btn_layout)
+
+    def __bind(self):
+        self.open_btn.clicked.connect(self.open_btn_clicked_sig)
+        self.close_btn.clicked.connect(self.close_btn_clicked_sig)
+
+    # def on_open(self):
+    #     """打开按钮点击事件：更新状态灯为绿色"""
+    #     self.is_open = True
+    #     self.status_light.setStyleSheet(
+    #         """
+    #         border-radius: 20px;
+    #         background-color: green; /* 打开 → 绿色 */
+    #     """
+    #     )
+
+    # def on_close(self):
+    #     """关闭按钮点击事件：更新状态灯为灰色"""
+    #     self.is_open = False
+    #     self.status_light.setStyleSheet(
+    #         """
+    #         border-radius: 20px;
+    #         background-color: gray; /* 关闭 → 灰色 */
+    #     """
+    #     )
+
+
+class EmvTestUi(QWidget):
+    def __init__(self):
+        super().__init__()
+        self.setWindowTitle("继电器调试")
+        self.resize(1000, 600)
+        self.setStyleSheet("background-color: white;")  # 背景颜色，根据主题来变化
+        self.__initWidget()
+
+    def __initWidget(self):
+
+        # 创建控件
+        self.__createWidget()
+
+        # 设置样式
+        self.__initStyles()
+
+        # 设置布局
+        self.__initLayout()
+
+        # 绑定
+        self.__bind()
+
+    def __createWidget(self):
+        # Tcp连接控件
+        # IP控件
+        self.ip_label = BodyLabel("设备IP: ")
+        self.ip_edit = LineEdit()
+        self.ip_edit.setText("192.168.0.18")  # 默认IP
+
+        # 端口控件
+        self.port_label = BodyLabel("设备端口号: ")
+        self.port_edit = LineEdit()
+        self.port_edit.setText("50000")  # 默认端口
+
+        # 连接按钮
+        self.connect_btn = PushButton("连接")
+        # 功能测试按钮
+        self.test_btn = PushButton("功能测试")
+
+        # 三个Do模块
+        self.do1_model = DOWidget("DO1")
+        self.do2_model = DOWidget("DO2")
+        self.do3_model = DOWidget("DO3")
+
+    def __initStyles(self):
+        # 设置样式 （to do）
+        pass
+
+    def __initLayout(self):
+        # 顶部的连接布局
+        top_layout = QHBoxLayout()
+        top_layout.addWidget(self.ip_label)
+        top_layout.addWidget(self.ip_edit)
+        top_layout.addWidget(self.port_label)
+        top_layout.addWidget(self.port_edit)
+        top_layout.addWidget(self.connect_btn)
+        top_layout.addWidget(self.test_btn)
+
+        # 三个Do开关区域布局
+        do_layout = QHBoxLayout()
+        do_layout.setSpacing(60)  # DO模块之间的间距
+        do_layout.setAlignment(Qt.AlignCenter)  # 水平居中
+
+        do_layout.addWidget(self.do1_model)
+        do_layout.addWidget(self.do2_model)
+        do_layout.addWidget(self.do3_model)
+
+        # 主布局
+        main_layout = QVBoxLayout(self)
+        main_layout.setContentsMargins(60, 60, 60, 60)
+        main_layout.setSpacing(30)
+
+        main_layout.addLayout(top_layout)
+        main_layout.addLayout(do_layout)
+
+        main_layout.addItem(
+            QSpacerItem(0, 0, QSizePolicy.Minimum, QSizePolicy.Expanding)
+        )
+
+    def __bind(self):
+        pass
+        self.connect_btn.clicked.connect(self.on_connect)
+
+    def on_connect(self):
+        """连接按钮点击事件：切换状态为“连接中...”，模拟连接过程"""
+        # 禁用按钮 + 修改文字
+        self.connect_btn.setEnabled(False)
+        self.connect_btn.setText("连接中...")
+
+        # 模拟连接过程（实际应替换为真实的网络请求，如socket连接）
+        self.timer = QTimer(self)
+        self.timer.setSingleShot(True)
+        self.timer.timeout.connect(self.simulate_connection_result)
+        self.timer.start(2000)  # 模拟2秒连接耗时
+
+    def simulate_connection_result(self):
+        """模拟连接结果（这里固定返回失败，实际需根据真实逻辑修改）"""
+        # 模拟连接失败（实际中通过try-except或网络返回判断）
+        connection_success = False  # TODO: 替换为真实连接结果
+
+        if not connection_success:
+            # 弹出连接失败对话框
+            # 正确创建警告对话框：通过 type 参数指定为警告类型
+            msg_box = MessageBox(
+                "连接失败",  # 标题
+                "无法连接到设备, 请检查IP和端口是否正确!!",  # 内容
+                self,  # 父窗口
+            )
+            msg_box.exec()  # 显示对话框
+
+        # 恢复按钮状态
+        self.connect_btn.setEnabled(True)
+        self.connect_btn.setText("连接")
+
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    setTheme(Theme.LIGHT)
+    window = EmvTestUi()
+    window.show()
+    sys.exit(app.exec())
diff --git a/test_login1.py b/tests/test_login1.py
similarity index 99%
rename from test_login1.py
rename to tests/test_login1.py
index f9cf6a1..e002a6b 100644
--- a/test_login1.py
+++ b/tests/test_login1.py
@@ -1,3 +1,5 @@
+from common import *
+
 import sys
 from PySide6.QtWidgets import (
     QApplication,
diff --git a/test_login2.py b/tests/test_login2.py
similarity index 99%
rename from test_login2.py
rename to tests/test_login2.py
index dc52905..5f4c9ab 100644
--- a/test_login2.py
+++ b/tests/test_login2.py
@@ -1,3 +1,5 @@
+from common import *
+
 import sys
 from PySide6.QtWidgets import (
     QApplication,
diff --git a/test_moju.py b/tests/test_moju.py
similarity index 99%
rename from test_moju.py
rename to tests/test_moju.py
index 59f3995..5d5ac4c 100644
--- a/test_moju.py
+++ b/tests/test_moju.py
@@ -1,3 +1,5 @@
+from common import *
+
 from PySide6.QtWidgets import (
     QApplication,
     QWidget,
diff --git a/test_register.py b/tests/test_register.py
similarity index 99%
rename from test_register.py
rename to tests/test_register.py
index 84a55cb..5e7a7eb 100644
--- a/test_register.py
+++ b/tests/test_register.py
@@ -1,3 +1,5 @@
+from common import *
+
 from PySide6.QtWidgets import (
     QApplication,
     QWidget,
diff --git a/test_teachhtml.py b/tests/test_teachhtml.py
similarity index 99%
rename from test_teachhtml.py
rename to tests/test_teachhtml.py
index fd179b5..00da274 100644
--- a/test_teachhtml.py
+++ b/tests/test_teachhtml.py
@@ -1,3 +1,5 @@
+from common import *
+
 import sys
 from PySide6.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget
 from PySide6.QtWebEngineWidgets import QWebEngineView
diff --git a/tests/test_weight.py b/tests/test_weight.py
new file mode 100644
index 0000000..4e6acd9
--- /dev/null
+++ b/tests/test_weight.py
@@ -0,0 +1,146 @@
+from common import *
+
+from PySide6.QtWidgets import (
+    QApplication,
+    QWidget,
+    QFormLayout,
+    QHBoxLayout,
+    QVBoxLayout,
+    QLabel,
+    QSpacerItem,
+    QSizePolicy,
+)
+from PySide6.QtCore import Qt
+from qfluentwidgets import LineEdit, PushButton, StrongBodyLabel
+
+
+class WeightControlUI(QWidget):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+
+        # ========== 1. 窗口基础设置 ==========
+        self.setWindowTitle("计量一体机调试")
+        self.resize(800, 600)  # 窗口大小
+        self.setStyleSheet("background-color: white;")  # 背景颜色，根据主题来变化
+
+        self.__initWidget()
+
+    def __initWidget(self):
+
+        # 创建控件
+        self.__createWidget()
+
+        # 设置样式
+        self.__initStyles()
+
+        # 设置布局
+        self.__initLayout()
+
+    def __createWidget(self):
+        # ========== 创建表单控件 ==========
+        # 右侧编辑栏
+        self.target_weight_edit = LineEdit()
+        self.target_weight_edit.setPlaceholderText("目标重量")
+
+        self.current_weight_edit = LineEdit()
+        self.current_weight_edit.setPlaceholderText("当前重量")
+        self.current_weight_edit.setReadOnly(True)  # 只读
+
+        self.error_edit = LineEdit()
+        self.error_edit.setPlaceholderText("误差")
+        self.error_edit.setReadOnly(True)  # 只读
+
+        # ========== 按钮 ==========
+        self.calibrate_btn = PushButton("重量标定")
+        self.confirm_btn = PushButton("确认")
+        self.compensate_btn = PushButton("补称")
+        self.motor_forward_btn = PushButton("电机正转")
+        self.motor_reverse_btn = PushButton("电机反转")
+
+    def __initStyles(self):
+        # 设置按钮大小
+        # 固定大小为 160x46
+        for btn in [
+            self.calibrate_btn,
+            self.confirm_btn,
+            self.compensate_btn,
+            self.motor_forward_btn,
+            self.motor_reverse_btn,
+        ]:
+            btn.setFixedSize(160, 46)  # 固定按钮尺寸
+
+    def __initLayout(self):
+        # ========== 布局设计 ==========
+        # 表单布局（标签+输入框，右对齐）
+        form_layout = QFormLayout()
+        form_layout.addRow(StrongBodyLabel("目标重量："), self.target_weight_edit)
+        form_layout.addRow(StrongBodyLabel("当前重量："), self.current_weight_edit)
+        form_layout.addRow(StrongBodyLabel("误差："), self.error_edit)
+        form_layout.setRowWrapPolicy(QFormLayout.DontWrapRows)  # 禁止换行
+        form_layout.setVerticalSpacing(20)  # 行间距
+        form_layout.setLabelAlignment(Qt.AlignLeft | Qt.AlignVCenter)  # 标签左对齐
+
+        # 用QHBoxLayout 包裹 form_layout，两侧加弹簧
+        form_horizontal_layout = QHBoxLayout()
+        # 左侧弹簧：占据左边多余空间
+        form_horizontal_layout.addItem(
+            QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Minimum)
+        )
+        # 添加表单布局
+        form_horizontal_layout.addLayout(form_layout)
+        # 右侧弹簧：占据右边多余空间
+        form_horizontal_layout.addItem(
+            QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Minimum)
+        )
+
+        # 按钮布局（第一行：重量标定 + 确认；第二行：补称 + 电机正转 + 电机反转）
+        # 第一行按钮布局（中间留空，让按钮居中）
+        btn_row1_layout = QHBoxLayout()
+        btn_row1_layout.addSpacerItem(
+            QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Minimum)
+        )
+        btn_row1_layout.addWidget(self.calibrate_btn)
+        btn_row1_layout.addSpacerItem(
+            QSpacerItem(160, 0, QSizePolicy.Fixed, QSizePolicy.Minimum)
+        )  # 两个按钮之间的间距为160
+        btn_row1_layout.addWidget(self.confirm_btn)
+        btn_row1_layout.addSpacerItem(
+            QSpacerItem(0, 0, QSizePolicy.Expanding, QSizePolicy.Minimum)
+        )
+
+        # 第二行按钮布局（均匀分布）
+        btn_row2_layout = QHBoxLayout()
+        btn_row2_layout.addWidget(self.compensate_btn)
+        btn_row2_layout.addSpacerItem(
+            QSpacerItem(60, 0, QSizePolicy.Fixed, QSizePolicy.Minimum)
+        )
+        btn_row2_layout.addWidget(self.motor_forward_btn)
+        btn_row2_layout.addSpacerItem(
+            QSpacerItem(60, 0, QSizePolicy.Fixed, QSizePolicy.Minimum)
+        )
+        btn_row2_layout.addWidget(self.motor_reverse_btn)
+        btn_row2_layout.setContentsMargins(0, 0, 0, 0)  # 清除边距
+
+        # 主布局（垂直排列：表单 + 按钮行1 + 按钮行2）
+        main_layout = QVBoxLayout(self)
+        main_layout.addLayout(form_horizontal_layout)
+        main_layout.addSpacing(40)  # 表单与按钮的间距
+        main_layout.addLayout(btn_row1_layout)
+        main_layout.addSpacing(30)  # 两行按钮的间距
+        main_layout.addLayout(btn_row2_layout)
+        main_layout.setContentsMargins(80, 60, 80, 60)  # 窗口内边距
+        # main_layout.setAlignment(Qt.AlignTop | Qt.AlignHCenter)  # 整体上对齐，水平居中
+        main_layout.setAlignment(Qt.AlignVCenter | Qt.AlignHCenter)  # 垂直、水平居中
+
+
+if __name__ == "__main__":
+    import sys
+
+    app = QApplication(sys.argv)
+    # 设置qfluentwidgets全局主题（如浅色主题）
+    from qfluentwidgets import setTheme, Theme
+
+    setTheme(Theme.LIGHT)
+    window = WeightControlUI()
+    window.show()
+    sys.exit(app.exec())