text 以下谷歌文档包含我的代码的屏幕截图以及说明。我现在遇到的问题是，并非所有数据都被附加到 .csv 文件中。当我输入所有字段来添加学生时，只有 SID、名字、姓氏被传递到 .csv 文件。
我尝试通过以下方式附加数据： 使用 CSV writer() 方法将数据附加到 Python 中的 csv 文件 使用 CSV DictWriter() 方法将数据附加到 Python 中的 csv 文件 使用 pandas 将数据附加到 Python 中的 csv 文件
这是代码：
import tkinter as tk
from tkinter import ttk
from tkinter import filedialog # Import filedialog from tkinter
import pandas as pd
from tkinter.filedialog import askopenfile
import csv
import numpy as np # Required for handling NaN values
# Define global variables to store and manipulate data
student_data = []
imported_data = "" # Store the imported data
def import_data():
# Open a CSV file dialog and get the selected file
file = askopenfile(mode='r', filetypes=[('CSV Files', '*.csv')])
if file:
# Use pandas to read the CSV file
df = pd.read_csv(file)
# Iterate over the rows in the DataFrame
for _, row in df.iterrows():
student_info = {
'SID': row['SID'],
'FirstName': row['FirstName'],
'LastName': row['LastName'],
'Email': row['Email'],
'Homeworks(hw1, hw2, hw3)': [str(row[f'HW{i}']) for i in range(1, 4)],
'Quizzes(quiz1, quiz2, quiz3, quiz4)': [str(row[f'Quiz{i}']) for i in range(1, 5)],
'MidtermExam': str(row['MidtermExam']),
'FinalExam': str(row['FinalExam'])
}
# Display the student information in the text widget
imported_text.insert(tk.END, f"SID: {student_info['SID']}\n")
imported_text.insert(tk.END, f"FirstName: {student_info['FirstName']}\n")
imported_text.insert(tk.END, f"LastName: {student_info['LastName']}\n")
imported_text.insert(tk.END, f"Email: {student_info['Email']}\n")
imported_text.insert(tk.END, f"Homeworks(hw1, hw2, hw3): {', '.join(student_info['Homeworks(hw1, hw2, hw3)'])}\n")
imported_text.insert(tk.END, f"Quizzes(quiz1, quiz2, quiz3, quiz4): {', '.join(student_info['Quizzes(quiz1, quiz2, quiz3, quiz4)'])}\n")
imported_text.insert(tk.END, f"MidtermExam: {student_info['MidtermExam']}\n")
imported_text.insert(tk.END, f"FinalExam: {student_info['FinalExam']}\n")
imported_text.insert(tk.END, "\n") # Add a blank line to separate students
def display_imported_data():
# Clear the text box and insert the imported data
imported_text.config(state=tk.NORMAL) # Enable text widget for editing
imported_text.delete(1.0, tk.END)
imported_text.insert(tk.END, imported_data)
imported_text.config(state=tk.DISABLED) # Disable text widget for read-only
def add_student():
# Retrieve input values from the user
sid = int(sid_entry.get()) if sid_entry.get() else 0 # Convert to integer or default to 0 if empty
first_name = first_name_entry.get()
last_name = last_name_entry.get()
email = email_entry.get()
# Retrieve homework scores from the input fields and validate
hw1 = int(hw1_entry.get()) if hw1_entry.get() else 0 # Convert to integer or default to 0 if empty
hw2 = int(hw2_entry.get()) if hw2_entry.get() else 0
hw3 = int(hw3_entry.get()) if hw3_entry.get() else 0
# Retrieve quiz scores from the input fields and validate
quiz1 = int(quiz1_entry.get()) if quiz1_entry.get() else 0 # Convert to integer or default to 0 if empty
quiz2 = int(quiz2_entry.get()) if quiz2_entry.get() else 0
quiz3 = int(quiz3_entry.get()) if quiz3_entry.get() else 0
quiz4 = int(quiz4_entry.get()) if quiz4_entry.get() else 0
midterm = int(midterm_entry.get()) if midterm_entry.get() else 0 # Convert to integer or default to 0 if empty
final = int(final_entry.get()) if final_entry.get() else 0
# Call the add_student_data function with user inputs, including homework and quiz scores
add_student_data(sid, first_name, last_name, email, hw1, hw2, hw3, quiz1, quiz2, quiz3, quiz4, midterm, final)
def add_student_data(sid, first_name, last_name, email, hw1, hw2, hw3, quiz1, quiz2, quiz3, quiz4, midterm, final):
global student_data
# Create a new student record
new_student = {
'SID': sid,
'FirstName': first_name,
'LastName': last_name,
'Email': email,
'HW1': hw1,
'HW2': hw2,
'HW3': hw3,
'Quiz1': quiz1,
'Quiz2': quiz2,
'Quiz3': quiz3,
'Quiz4': quiz4,
'MidtermExam': midterm,
'FinalExam': final
}
# Add the new student to the data list
student_data.append(new_student)
# Save the updated data to the CSV file
save_data_to_csv()
def clear_input_fields():
# Clear input fields
sid_entry.delete(0, 'end')
first_name_entry.delete(0, 'end')
last_name_entry.delete(0, 'end')
email_entry.delete(0, 'end')
hw1_entry.delete(0, 'end')
hw2_entry.delete(0, 'end')
hw3_entry.delete(0, 'end')
quiz1_entry.delete(0, 'end')
quiz2_entry.delete(0, 'end')
quiz3_entry.delete(0, 'end')
quiz4_entry.delete(0, 'end')
midterm_entry.delete(0, 'end')
final_entry.delete(0, 'end')
def delete_student():
# Retrieve input value (SID) from the user
sid = int(delete_sid_entry.get())
# Call the delete_student_data function with user input
delete_student_data(sid)
def delete_student_data(sid):
# Open the original CSV file and a temporary CSV file
with open('Student_data.csv', newline='') as csvfile, \
open('Temp_Student_data.csv', mode='w', newline='') as temp_csvfile:
csvFile = csv.DictReader(csvfile)
fieldnames = csvFile.fieldnames
# Create a CSV writer for the temporary file
writer = csv.DictWriter(temp_csvfile, fieldnames=fieldnames)
writer.writeheader()
# Iterate through the original CSV and copy non-matching students to the temporary file
for student in csvFile:
if int(student['SID']) != sid:
writer.writerow(student)
# Replace the original file with the temporary file
import shutil
shutil.move('Temp_Student_data.csv', 'Student_data.csv')
# Clear input field
delete_sid_entry.delete(0, 'end')
def search_student():
# Retrieve input value (SID) from the user
sid = int(search_sid_entry.get())
# Search for the student in the CSV file
found_student = None
with open('Student_data.csv', newline='') as csvfile:
csvFile = csv.DictReader(csvfile)
for student in csvFile:
if int(student['SID']) == sid:
found_student = student
break
if found_student:
# Format the student data
homeworks = [found_student[f'HW{i}'] for i in range(1, 4)]
quizzes = [found_student[f'Quiz{i}'] for i in range(1, 5)]
formatted_student = f"SID: {found_student['SID']}\n" \
f"FirstName: {found_student['FirstName']}\n" \
f"LastName: {found_student['LastName']}\n" \
f"Email: {found_student['Email']}\n" \
f"Homeworks: ({', '.join(homeworks)})\n" \
f"Quizzes: ({', '.join(quizzes)})\n" \
f"MidtermExam: {found_student['MidtermExam']}\n" \
f"FinalExam: {found_student['FinalExam']}"
# Update the text box with the formatted student data
searched_student_text.delete(1.0, tk.END) # Clear previous content
searched_student_text.insert(tk.END, formatted_student)
result_label.config(text="Student found:")
else:
searched_student_text.delete(1.0, tk.END) # Clear previous content
searched_student_text.insert(tk.END, "Student not found")
def search_student_data(sid, student_data):
# Implement searching for a student by SID and return their data
for student in student_data:
if student['SID'] == sid:
return student
return None
def update_scores():
# Retrieve input values (SID and scores) from the user
sid = int(update_sid_entry.get())
hw1 = int(update_hw1_entry.get())
hw2 = int(update_hw2_entry.get())
hw3 = int(update_hw3_entry.get())
quiz1 = int(update_quiz1_entry.get())
quiz2 = int(update_quiz2_entry.get())
quiz3 = int(update_quiz3_entry.get())
quiz4 = int(update_quiz4_entry.get())
midterm = int(update_midterm_entry.get())
final = int(update_final_entry.get())
# Call the update_scores_data function with user inputs
update_scores_data(sid, hw1, hw2, hw3, quiz1, quiz2, quiz3, quiz4, midterm, final)
def update_scores_data(sid, hw1, hw2, hw3, quiz1, quiz2, quiz3, quiz4, midterm, final):
global student_data
# Find the student by SID
student_found = False
for student in student_data:
if student['SID'] == sid:
student_found = True
# Update the scores
student['HW1'] = hw1
student['HW2'] = hw2
student['HW3'] = hw3
student['Quiz1'] = quiz1
student['Quiz2'] = quiz2
student['Quiz3'] = quiz3
student['Quiz4'] = quiz4
student['MidtermExam'] = midterm
student['FinalExam'] = final
break
if student_found:
# Save the updated data to the CSV file
save_data_to_csv()
else:
print("Student not found by SID")
def export_data():
# Implement exporting data to a .csv file
pass
def save_data_to_csv():
global student_data
# Specify the CSV file path
csv_file_path = 'Student_data.csv'
# Write the data to the CSV file in append mode
with open(csv_file_path, mode='a', newline='') as csvfile:
fieldnames = ['SID', 'FirstName', 'LastName', 'Email', 'HW1', 'HW2', 'HW3',
'Quiz1', 'Quiz2', 'Quiz3', 'Quiz4', 'MidtermExam', 'FinalExam']
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
# If the file is empty, write the header row
if csvfile.tell() == 0:
writer.writeheader()
# Write the data for the new student to the CSV file
for student in student_data:
writer.writerow(student)
# Create the main window
root = tk.Tk()
root.title("Gradebook System")
# Create a notebook to organize different functionalities
notebook = ttk.Notebook(root)
notebook.pack(fill="both", expand=True)
# Create tabs for each functionality
import_tab = ttk.Frame(notebook)
add_delete_tab = ttk.Frame(notebook)
search_tab = ttk.Frame(notebook)
update_tab = ttk.Frame(notebook)
export_tab = ttk.Frame(notebook)
notebook.add(import_tab, text="Import Data")
notebook.add(add_delete_tab, text="Add/Delete Student")
notebook.add(search_tab, text="Search Student")
notebook.add(update_tab, text="Update Scores")
notebook.add(export_tab, text="Export Data")
# Add Student Tab
sid_label = tk.Label(add_delete_tab, text="SID to Add:")
sid_entry = tk.Entry(add_delete_tab)
first_name_label = tk.Label(add_delete_tab, text="FirstName:")
first_name_entry = tk.Entry(add_delete_tab)
last_name_label = tk.Label(add_delete_tab, text="LastName:")
last_name_entry = tk.Entry(add_delete_tab)
email_label = tk.Label(add_delete_tab, text="Email:")
email_entry = tk.Entry(add_delete_tab)
hw1_label = tk.Label(add_delete_tab, text="HW1:")
hw1_entry = tk.Entry(add_delete_tab)
hw2_label = tk.Label(add_delete_tab, text="HW2:")
hw2_entry = tk.Entry(add_delete_tab)
hw3_label = tk.Label(add_delete_tab, text="HW3:")
hw3_entry = tk.Entry(add_delete_tab)
quiz1_label = tk.Label(add_delete_tab, text="Quiz 1:")
quiz1_entry = tk.Entry(add_delete_tab)
quiz2_label = tk.Label(add_delete_tab, text="Quiz 2:")
quiz2_entry = tk.Entry(add_delete_tab)
quiz3_label = tk.Label(add_delete_tab, text="Quiz 3:")
quiz3_entry = tk.Entry(add_delete_tab)
quiz4_label = tk.Label(add_delete_tab, text="Quiz 4:")
quiz4_entry = tk.Entry(add_delete_tab)
midterm_label = tk.Label(add_delete_tab, text="MidtermExam:")
midterm_entry = tk.Entry(add_delete_tab)
final_label = tk.Label(add_delete_tab, text="FinalExam:")
final_entry = tk.Entry(add_delete_tab)
add_student_button = tk.Button(add_delete_tab, text="Add Student", command=add_student)
# Place labels, input fields, and buttons in the Add Student Tab
sid_label.grid(row=1, column=0, padx=5, pady=5, sticky=tk.W)
sid_entry.grid(row=1, column=1, padx=5, pady=5)
first_name_label.grid(row=2, column=0, padx=5, pady=5, sticky=tk.W)
first_name_entry.grid(row=2, column=1, padx=5, pady=5)
last_name_label.grid(row=3, column=0, padx=5, pady=5, sticky=tk.W)
last_name_entry.grid(row=3, column=1, padx=5, pady=5)
email_label.grid(row=4, column=0, padx=5, pady=5, sticky=tk.W)
email_entry.grid(row=4, column=1, padx=5, pady=5)
hw1_label.grid(row=5, column=0, padx=5, pady=5, sticky=tk.W)
hw1_entry.grid(row=5, column=1, padx=5, pady=5)
hw2_label.grid(row=6, column=0, padx=5, pady=5, sticky=tk.W)
hw2_entry.grid(row=6, column=1, padx=5, pady=5)
hw3_label.grid(row=7, column=0, padx=5, pady=5, sticky=tk.W)
hw3_entry.grid(row=7, column=1, padx=5, pady=5)
quiz1_label.grid(row=8, column=0, padx=5, pady=5, sticky=tk.W)
quiz1_entry.grid(row=8, column=1, padx=5, pady=5)
quiz2_label.grid(row=9, column=0, padx=5, pady=5, sticky=tk.W)
quiz2_entry.grid(row=9, column=1, padx=5, pady=5)
quiz3_label.grid(row=10, column=0, padx=5, pady=5, sticky=tk.W)
quiz3_entry.grid(row=10, column=1, padx=5, pady=5)
quiz4_label.grid(row=11, column=0, padx=5, pady=5, sticky=tk.W)
quiz4_entry.grid(row=11, column=1, padx=5, pady=5)
midterm_label.grid(row=12, column=0, padx=5, pady=5, sticky=tk.W)
midterm_entry.grid(row=12, column=1, padx=5, pady=5)
final_label.grid(row=13, column=0, padx=5, pady=5, sticky=tk.W)
final_entry.grid(row=13, column=1, padx=5, pady=5)
add_student_button.grid(row=14, column=0, columnspan=2, padx=5, pady=10)
# Define entry fields for homeworks
hw1_label = tk.Label(add_delete_tab, text="Homework 1:")
hw1_entry = tk.Entry(add_delete_tab)
hw2_label = tk.Label(add_delete_tab, text="Homework 2:")
hw2_entry = tk.Entry(add_delete_tab)
hw3_label = tk.Label(add_delete_tab, text="Homework 3:")
hw3_entry = tk.Entry(add_delete_tab)
# Define entry fields for quizzes
quiz1_label = tk.Label(add_delete_tab, text="Quiz 1:")
quiz1_entry = tk.Entry(add_delete_tab)
quiz2_label = tk.Label(add_delete_tab, text="Quiz 2:")
quiz2_entry = tk.Entry(add_delete_tab)
quiz3_label = tk.Label(add_delete_tab, text="Quiz 3:")
quiz3_entry = tk.Entry(add_delete_tab)
quiz4_label = tk.Label(add_delete_tab, text="Quiz 4:")
quiz4_entry = tk.Entry(add_delete_tab)
# Define entry fields for midterm and final exams
midterm_label = tk.Label(add_delete_tab, text="Midterm Exam:")
midterm_entry = tk.Entry(add_delete_tab)
final_label = tk.Label(add_delete_tab, text="Final Exam:")
final_entry = tk.Entry(add_delete_tab)
# Delete Student Tab
delete_sid_label = tk.Label(add_delete_tab, text="SID to Delete:")
delete_sid_entry = tk.Entry(add_delete_tab)
delete_student_button = tk.Button(add_delete_tab, text="Delete Student", command=delete_student)
# Delete Student Tab
delete_sid_label.grid(row=0, column=0, padx=5, pady=5, sticky=tk.W)
delete_sid_entry.grid(row=0, column=1, padx=10, pady=5)
delete_student_button.grid(row=0, column=2, columnspan=2, padx=5, pady=10)
# Import Data Tab
import_data_button = tk.Button(import_tab, text="Import Data", command=import_data)
import_data_button.pack(padx=20, pady=50)
# Create a text box to display the imported data
imported_text = tk.Text(import_tab, height=20, width=50)
imported_text.pack(padx=20, pady=10)
# Optionally, you can add a label to indicate the import status
import_status_label = tk.Label(import_tab, text="")
import_status_label.pack()
# Search Student Tab
search_sid_label = tk.Label(search_tab, text="SID to Search:")
search_sid_entry = tk.Entry(search_tab)
search_student_button = tk.Button(search_tab, text="Search Student", command=search_student)
result_label = tk.Label(search_tab, text="")
# Create a text box to display the searched student
searched_student_text = tk.Text(search_tab, height=10, width=50)
searched_student_text.grid(row=3, column=0, columnspan=2, padx=20, pady=10)
# Place labels, input fields, and buttons in the Search Student Tab
search_sid_label.grid(row=0, column=0, padx=5, pady=5, sticky=tk.W)
search_sid_entry.grid(row=0, column=1, padx=5, pady=5)
search_student_button.grid(row=1, column=0, columnspan=2, padx=5, pady=10)
result_label.grid(row=2, column=0, columnspan=2, padx=5, pady=10)
# Update Scores Tab
update_sid_label = tk.Label(update_tab, text="SID to Update:")
update_sid_entry = tk.Entry(update_tab)
update_hw1_label = tk.Label(update_tab, text="New HW1 Score:")
update_hw1_entry = tk.Entry(update_tab)
update_hw2_label = tk.Label(update_tab, text="New HW2 Score:")
update_hw2_entry = tk.Entry(update_tab)
update_hw3_label = tk.Label(update_tab, text="New HW3 Score:")
update_hw3_entry = tk.Entry(update_tab)
update_quiz1_label = tk.Label(update_tab, text="New Quiz 1 Score:")
update_quiz1_entry = tk.Entry(update_tab)
update_quiz2_label = tk.Label(update_tab, text="New Quiz 2 Score:")
update_quiz2_entry = tk.Entry(update_tab)
update_quiz3_label = tk.Label(update_tab, text="New Quiz 3 Score:")
update_quiz3_entry = tk.Entry(update_tab)
update_quiz4_label = tk.Label(update_tab, text="New Quiz 4 Score:")
update_quiz4_entry = tk.Entry(update_tab)
update_midterm_label = tk.Label(update_tab, text="New Midterm Score:")
update_midterm_entry = tk.Entry(update_tab)
update_final_label = tk.Label(update_tab, text="New Final Score:")
update_final_entry = tk.Entry(update_tab)
update_scores_button = tk.Button(update_tab, text="Update Scores", command=update_scores)
# Place labels, input fields, and buttons in the Update Scores Tab
update_sid_label.grid(row=0, column=0, padx=5, pady=5, sticky=tk.W)
update_sid_entry.grid(row=0, column=1, padx=5, pady=5)
update_hw1_label.grid(row=1, column=0, padx=5, pady=5, sticky=tk.W)
update_hw1_entry.grid(row=1, column=1, padx=5, pady=5)
update_hw2_label.grid(row=2, column=0, padx=5, pady=5, sticky=tk.W)
update_hw2_entry.grid(row=2, column=1, padx=5, pady=5)
update_hw3_label.grid(row=3, column=0, padx=5, pady=5, sticky=tk.W)
update_hw3_entry.grid(row=3, column=1, padx=5, pady=5)
update_quiz1_label.grid(row=4, column=0, padx=5, pady=5, sticky=tk.W)
update_quiz1_entry.grid(row=4, column=1, padx=5, pady=5)
update_quiz2_label.grid(row=5, column=0, padx=5, pady=5, sticky=tk.W)
update_quiz2_entry.grid(row=5, column=1, padx=5, pady=5)
update_quiz3_label.grid(row=6, column=0, padx=5, pady=5, sticky=tk.W)
update_quiz3_entry.grid(row=6, column=1, padx=5, pady=5)
update_quiz4_label.grid(row=7, column=0, padx=5, pady=5, sticky=tk.W)
update_quiz4_entry.grid(row=7, column=1, padx=5, pady=5)
update_midterm_label.grid(row=8, column=0, padx=5, pady=5, sticky=tk.W)
update_midterm_entry.grid(row=8, column=1, padx=5, pady=5)
update_final_label.grid(row=9, column=0, padx=5, pady=5, sticky=tk.W)
update_final_entry.grid(row=9, column=1, padx=5, pady=5)
update_scores_button.grid(row=10, column=0, columnspan=2, padx=5, pady=10)
# Export Data Tab
export_button = tk.Button(export_tab, text="Export Data", command=export_data)
# Place the export button in the Export Data Tab
export_button.pack(padx=20, pady=20)
# Create the main window
root.mainloop()
您似乎正在使用 Python 和 Tkinter 开发成绩簿系统。您的代码提供导入、添加、删除、搜索、更新以及可能导出学生数据的功能。但是，您提到您遇到了问题，因为并非所有数据都附加到 CSV 文件中。让我们先解决这个问题。
为了确保所有数据都正确附加到 CSV 文件，您应该对 add_student_data 和 save_data_to_csv 函数进行一些更改。具体来说，您应该更新字段名称列表中的列名称，以匹配您在学生词典中使用的键。以下是这些函数的修改后的代码：
def add_student_data(sid, first_name, last_name, email, hw1, hw2, hw3, quiz1, quiz2, quiz3, quiz4, midterm, final):
global student_data
# Create a new student record
new_student = {
'SID': sid,
'FirstName': first_name,
'LastName': last_name,
'Email': email,
'HW1': hw1,
'HW2': hw2,
'HW3': hw3,
'Quiz1': quiz1,
'Quiz2': quiz2,
'Quiz3': quiz3,
'Quiz4': quiz4,
'MidtermExam': midterm,
'FinalExam': final
}
# Add the new student to the data list
student_data.append(new_student)
# Save the updated data to the CSV file
save_data_to_csv()
def save_data_to_csv():
global student_data
# Specify the CSV file path
csv_file_path = 'Student_data.csv'
# Write the data to the CSV file in append mode
with open(csv_file_path, mode='a', newline='') as csvfile:
fieldnames = ['SID', 'FirstName', 'LastName', 'Email', 'HW1', 'HW2', 'HW3',
'Quiz1', 'Quiz2', 'Quiz3', 'Quiz4', 'MidtermExam', 'FinalExam']
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
# If the file is empty, write the header row
if csvfile.tell() == 0:
writer.writeheader()
# Write the data for the new student to the CSV file
for student in student_data:
writer.writerow(student)
这些更改应确保所有学生数据都正确附加到 CSV 文件中。