import tkinter as tk
from tkinter import ttk
from tkinter import messagebox

# 进制转换函数
def convert_base():
    try:
        # 获取输入值和进制
        input_num = input_entry.get().strip()
        input_base = int(input_base_combobox.get())
        output_base = int(output_base_combobox.get())
        
        # 将输入数从指定进制转换为十进制
        decimal_num = int(input_num, input_base)
        
        # 将十进制数转换为目标进制
        if output_base == 10:
            result = str(decimal_num)
        else:
            result = ''
            digits = "0123456789ABCDEF"
            while decimal_num > 0:
                result = digits[decimal_num % output_base] + result
                decimal_num //= output_base
            if result == '':
                result = '0'
        
        # 显示转换结果
        output_entry.config(state=tk.NORMAL)
        output_entry.delete(0, tk.END)
        output_entry.insert(0, result)
        output_entry.config(state=tk.DISABLED)
        
    except ValueError:
        messagebox.showerror("错误", "输入的数字格式不正确或超出进制范围")

# 创建主窗口
root = tk.Tk()
root.title("进制转换器")
root.geometry("400x250")

# 输入框标签和输入框
tk.Label(root, text="输入数字:").pack(pady=5)
input_entry = tk.Entry(root, width=30)
input_entry.pack(pady=5)

# 输入进制选择
tk.Label(root, text="输入数字的进制:").pack(pady=5)
input_base_combobox = ttk.Combobox(root, values=[str(i) for i in range(2, 17)], state="readonly", width=5)
input_base_combobox.current(0)  # 默认选择2进制
input_base_combobox.pack(pady=5)

# 输出进制选择
tk.Label(root, text="输出数字的进制:").pack(pady=5)
output_base_combobox = ttk.Combobox(root, values=[str(i) for i in range(2, 17)], state="readonly", width=5)
output_base_combobox.current(0)  # 默认选择2进制
output_base_combobox.pack(pady=5)

# 转换按钮
convert_button = tk.Button(root, text="转换", command=convert_base)
convert_button.pack(pady=10)

# 输出框标签和输出框
tk.Label(root, text="转换结果:").pack(pady=5)
output_entry = tk.Entry(root, width=30, state=tk.DISABLED)
output_entry.pack(pady=5)

# 运行主循环
root.mainloop()