Tkinter 按钮不更新变量

我有一个类中有两个单选按钮的 GUI，使用 tkinter 的第一个单选按钮旨在将变量 save_to_excel 设置为 True，而第二个单选按钮应为 false，这是为了让用户确定是否要保存信息作为 Excel 工作表或文本文档。我有一个旧版本的代码，可以工作并正确更新变量，但是新版本必须更改某些内容，而新版本无法正确更新它。

当前代码（不起作用）：

class DICOMExtractorApp:
    def __init__(self, root):
        try:
            self.root = root
            self.root.title("DICOM Info Extractor")
            self.root.configure(bg="white")

            # Initializing variables
            self.folder_path = ""
            self.output_path = ""
            self.save_to_excel = tk.BooleanVar(value=True)  # Default to saving to Excel
            self.dicom_tags = {}
            self.default_tags = {
                "Filename": "filename",
                "Acquisition Date": (0x0008, 0x0022),
                "Manufacturer": (0x0008, 0x0070),
                "Study Description": (0x0008, 0x1030),
                "Instance Number": (0x0020, 0x0013),
                "Series Description": (0x0008, 0x103E),
                "Acquisition Time": (0x0008, 0x0032),
                "Modality": (0x0008, 0x0060),
                "Station Name": (0x0008, 0x1010)
            }
            self.selected_tags = {tag: tk.BooleanVar(value=True) for tag in self.default_tags}
            self.tags_per_page = 10
            self.current_page = 0

            self.create_widgets()
        except Exception as e:
            self.log_error(e)
...
            tk.Radiobutton(self.root, text="Save to Excel", variable=self.save_to_excel, value=True, bg="white", command=self.print_save_option).place(x=350, y=20)
            tk.Radiobutton(self.root, text="Save to Text", variable=self.save_to_excel, value=False, bg="white", command=self.print_save_option).place(x=460, y=20)

旧代码：|| |当我选择“保存到文本”单选按钮时，我希望输出打印 False，当我选择“保存到 Excel”单选按钮时，输出打印 True...

class DICOMExtractorApp:
    def __init__(self, root):
        self.root = root
        self.root.title("DICOM Info Extractor")
        self.root.configure(bg="white")

        self.folder_path = ""
        self.output_path = ""
        self.save_to_excel = tk.BooleanVar(value=True)
        self.dicom_tags = self.load_dicom_tags()
        self.default_tags = {
            "Filename": "filename",
            "Acquisition Date": (0x0008, 0x0022),
            "Manufacturer": (0x0008, 0x0070),
            "Study Description": (0x0008, 0x1030),
            "Instance Number": (0x0020, 0x0013)
        }
        self.selected_tags = {tag: tk.BooleanVar() for tag in self.default_tags}

        self.create_widgets()
...
   tk.Radiobutton(self.root, text="Save to Excel", variable=self.save_to_excel, value=True, bg="white",command=self.print_save_option).place(x=350, y=20)
        tk.Radiobutton(self.root, text="Save to Text", variable=self.save_to_excel, value=False, bg="white",command=self.print_save_option).place(x=460, y=20)

I expect the output to print False when I select 'save to text' radio button and True when I select 'save to excel' radiobutton...

问题出在如何初始化 selected_tags 字典。在当前代码中，将 selected_tags 初始化为包含 default_tags 中每个标签的布尔变量的字典。但是，在初始化这些布尔变量时没有将它们与 self.save_to_excel 变量相关联。

以下是修复代码的方法：

class DICOMExtractorApp:
    def __init__(self, root):
        try:
            self.root = root
            self.root.title("DICOM Info Extractor")
            self.root.configure(bg="white")

            # Initializing variables
            self.folder_path = ""
            self.output_path = ""
            self.save_to_excel = tk.BooleanVar(value=True)  # Default to saving to Excel
            self.dicom_tags = {}
            self.default_tags = {
                "Filename": "filename",
                "Acquisition Date": (0x0008, 0x0022),
                "Manufacturer": (0x0008, 0x0070),
                "Study Description": (0x0008, 0x1030),
                "Instance Number": (0x0020, 0x0013),
                "Series Description": (0x0008, 0x103E),
                "Acquisition Time": (0x0008, 0x0032),
                "Modality": (0x0008, 0x0060),
                "Station Name": (0x0008, 0x1010)
            }

            # 正确初始化 selected_tags
            self.selected_tags = {tag: tk.BooleanVar(value=self.save_to_excel.get()) for tag in self.default_tags}

            self.tags_per_page = 10
            self.current_page = 0

            self.create_widgets()
        except Exception as e:
            self.log_error(e)
...
            tk.Radiobutton(self.root, text="Save to Excel", variable=self.save_to_excel, value=True, bg="white", command=self.print_save_option).place(x=350, y=20)
            tk.Radiobutton(self.root, text="Save to Text", variable=self.save_to_excel, value=False, bg="white", command=self.print_save_option).place(x=460, y=20)

通过在 selected_tags 初始化期间使用 self.save_to_excel.get() ，可以确保每个标签的布尔变量都设置为与 self.save_to_excel 变量的当前值相同。这样，当更改 self.save_to_excel 时， selected_tags 中的相应布尔变量也会更新。