优化这段代码,为其添加背景图片import tkinter as tk import numpy as np # 创建窗口 def change_label(): button.destroy() label.config(text="请输入您的身高体重以及目标体重:") height_label.place(relx=0.5, rely=0.4, anchor="center") height_entry.place(relx=0.5, rely=0.45, anchor="center") weight_label.place(relx=0.5, rely=0.5, anchor="center") weight_entry.place(relx=0.5, rely=0.55, anchor="center") target_label.place(relx=0.5, rely=0.6, anchor="center") target_entry.place(relx=0.5, rely=0.65, anchor="center") submit_button.place(relx=0.5, rely=0.8, anchor="center") def show_buttons(): calculate_low_carb() calculate_medium_carb() calculate_high_carb() label.config(text="您的营养素分配如下:") label.place(relx=0.5, rely=0.2, anchor="center") height_label.destroy() height_entry.destroy() weight_label.destroy() weight_entry.destroy() target_label.destroy() target_entry.destroy() submit_button.destroy() submit_button_1.place(relx=0.5, rely=0.8, anchor="center") def calculate_low_carb(): global low_protein_intake, low_carb_intake, low_fat_intake height = float(height_entry.get()) weight = float(weight_entry.get()) target_weight = float(target_entry.get()) # 根据BMI计算蛋白质摄入量 bmi = weight / (height / 100)**2 if bmi >= 27: low_protein_intake = weight elif bmi >= 24 and bmi < 27: low_protein_intake = weight * 1.5 else: low_protein_intake = weight * 2 # 计算低碳日的碳水摄入量和脂肪摄入量 low_carb_intake = weight low_fat_intake = weight low_carb_label = tk.Label(root, text = "您低碳日的碳水摄入量为{:.1f}克,蛋白质摄入量为{:.1f}克,脂肪摄入量为{:.1f}克".format(low_carb_intake, low_protein_intake, low_fat_intake), font=("Arial", 18)) low_carb_label.place(relx=0.5, rely=0.4, anchor="center")
时间: 2024-02-20 18:01:49 浏览: 19
以下是优化后的代码,添加了背景图片,并进行了一些其他的改进:
```python
import tkinter as tk
import numpy as np
# 创建窗口
root = tk.Tk()
root.title("营养素计算器")
root.geometry("800x600")
# 添加背景图片
bg_image = tk.PhotoImage(file="background.png")
bg_label = tk.Label(root, image=bg_image)
bg_label.place(relwidth=1, relheight=1)
# 创建控件
label = tk.Label(root, text="请输入您的身高体重以及目标体重:", font=("Arial", 18))
height_label = tk.Label(root, text="身高(cm):", font=("Arial", 14))
height_entry = tk.Entry(root, font=("Arial", 14))
weight_label = tk.Label(root, text="体重(kg):", font=("Arial", 14))
weight_entry = tk.Entry(root, font=("Arial", 14))
target_label = tk.Label(root, text="目标体重(kg):", font=("Arial", 14))
target_entry = tk.Entry(root, font=("Arial", 14))
submit_button = tk.Button(root, text="提交", font=("Arial", 14), command=show_buttons)
submit_button_1 = tk.Button(root, text="返回", font=("Arial", 14), command=change_label)
# 设置控件位置
label.place(relx=0.5, rely=0.2, anchor="center")
height_label.place(relx=0.5, rely=0.4, anchor="center")
height_entry.place(relx=0.5, rely=0.45, anchor="center")
weight_label.place(relx=0.5, rely=0.5, anchor="center")
weight_entry.place(relx=0.5, rely=0.55, anchor="center")
target_label.place(relx=0.5, rely=0.6, anchor="center")
target_entry.place(relx=0.5, rely=0.65, anchor="center")
submit_button.place(relx=0.5, rely=0.8, anchor="center")
# 定义函数
def change_label():
button.destroy()
label.config(text="请输入您的身高体重以及目标体重:")
height_label.place(relx=0.5, rely=0.4, anchor="center")
height_entry.place(relx=0.5, rely=0.45, anchor="center")
weight_label.place(relx=0.5, rely=0.5, anchor="center")
weight_entry.place(relx=0.5, rely=0.55, anchor="center")
target_label.place(relx=0.5, rely=0.6, anchor="center")
target_entry.place(relx=0.5, rely=0.65, anchor="center")
submit_button.place(relx=0.5, rely=0.8, anchor="center")
def show_buttons():
calculate_low_carb()
calculate_medium_carb()
calculate_high_carb()
label.config(text="您的营养素分配如下:")
label.place(relx=0.5, rely=0.2, anchor="center")
height_label.destroy()
height_entry.destroy()
weight_label.destroy()
weight_entry.destroy()
target_label.destroy()
target_entry.destroy()
submit_button.destroy()
submit_button_1.place(relx=0.5, rely=0.8, anchor="center")
def calculate_low_carb():
global low_protein_intake, low_carb_intake, low_fat_intake
height = float(height_entry.get())
weight = float(weight_entry.get())
target_weight = float(target_entry.get())
# 根据BMI计算蛋白质摄入量
bmi = weight / (height / 100)**2
if bmi >= 27:
low_protein_intake = weight
elif bmi >= 24 and bmi < 27:
low_protein_intake = weight * 1.5
else:
low_protein_intake = weight * 2
# 计算低碳日的碳水摄入量和脂肪摄入量
low_carb_intake = weight
low_fat_intake = weight
low_carb_label = tk.Label(root, text="您低碳日的碳水摄入量为{:.1f}克,蛋白质摄入量为{:.1f}克,脂肪摄入量为{:.1f}克".format(low_carb_intake, low_protein_intake, low_fat_intake), font=("Arial", 18))
low_carb_label.place(relx=0.5, rely=0.4, anchor="center"))
# 运行主程序
root.mainloop()
```
需要注意的是,如果要在窗口中添加背景图片,需要使用PhotoImage类创建图片对象,并将它添加到Label控件上,再将该控件放置在窗口中。同时,在添加背景图片后,需要在设置控件位置之前将其放置在最底层,否则其他控件可能会被图片遮盖。