import tkinter as tk from tkinter import ttk, messagebox, filedialog import matplotlib.pyplot as plt from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg from matplotlib.figure import Figure import numpy as np from datetime import datetime class ScoreAnalysisTool: def __init__(self, root): self.root = root self.root.title("成绩走势图分析器") self.root.geometry("1200x700") self.students = {} self.subjects = [] self.current_student = None self.current_subject = None self.load_sample_data() self.create_interface() def load_sample_data(self): sample_data = { "张三": { "student_id": "2023001", "class_name": "高三(1)班", "scores": { "语文": [85, 88, 92, 90, 95, 93, 98, 96, 97, 100], "数学": [78, 82, 85, 88, 90, 92, 88, 85, 90, 95], "英语": [92, 90, 88, 85, 87, 90, 92, 94, 96, 98] } }, "李四": { "student_id": "2023002", "class_name": "高三(1)班", "scores": { "语文": [90, 88, 85, 87, 90, 92, 94, 96, 98, 100], "数学": [95, 92, 90, 88, 85, 90, 92, 95, 97, 100], "英语": [85, 87, 90, 92, 94, 96, 98, 100, 98, 96] } } } self.students = sample_data self.subjects = list(sample_data["张三"]["scores"].keys()) self.current_student = "张三" self.current_subject = "语文" def create_interface(self): main_frame = ttk.Frame(self.root, padding="10") main_frame.pack(fill=tk.BOTH, expand=True) control_frame = ttk.LabelFrame(main_frame, text="控制面板", padding="10") control_frame.pack(side=tk.LEFT, fill=tk.Y, padx=(0, 10)) ttk.Label(control_frame, text="选择学生:").pack(anchor=tk.W, pady=(0, 5)) self.student_var = tk.StringVar() self.student_combo = ttk.Combobox( control_frame, textvariable=self.student_var, state="readonly", width=20 ) self.student_combo.pack(fill=tk.X, pady=(0, 10)) self.student_combo.bind("<>", self.on_student_change) ttk.Label(control_frame, text="选择科目:").pack(anchor=tk.W, pady=(0, 5)) self.subject_var = tk.StringVar() self.subject_combo = ttk.Combobox( control_frame, textvariable=self.subject_var, state="readonly", width=20 ) self.subject_combo.pack(fill=tk.X, pady=(0, 10)) self.subject_combo.bind("<>", self.on_subject_change) self.chart_type_var = tk.StringVar(value="折线图") chart_frame = ttk.Frame(control_frame) chart_frame.pack(fill=tk.X, pady=(0, 10)) ttk.Radiobutton(chart_frame, text="折线图", variable=self.chart_type_var, value="折线图", command=self.update_chart).pack(side=tk.LEFT, padx=(0, 10)) ttk.Radiobutton(chart_frame, text="柱状图", variable=self.chart_type_var, value="柱状图", command=self.update_chart).pack(side=tk.LEFT) self.show_trend_line = tk.BooleanVar(value=True) self.show_average_line = tk.BooleanVar(value=True) self.show_points = tk.BooleanVar(value=True) ttk.Checkbutton(control_frame, text="显示趋势线", variable=self.show_trend_line, command=self.update_chart).pack(anchor=tk.W, pady=2) ttk.Checkbutton(control_frame, text="显示平均线", variable=self.show_average_line, command=self.update_chart).pack(anchor=tk.W, pady=2) ttk.Checkbutton(control_frame, text="显示数据点", variable=self.show_points, command=self.update_chart).pack(anchor=tk.W, pady=2) stats_frame = ttk.LabelFrame(control_frame, text="统计信息", padding="10") stats_frame.pack(fill=tk.X, pady=20) self.stats_text = tk.Text(stats_frame, height=8, width=20, font=("Arial", 10)) self.stats_text.pack(fill=tk.BOTH, expand=True) button_frame = ttk.Frame(control_frame) button_frame.pack(fill=tk.X, pady=(20, 0)) ttk.Button(button_frame, text="生成图表", command=self.update_chart).pack( side=tk.LEFT, fill=tk.X, expand=True, padx=(0, 5)) ttk.Button(button_frame, text="导出图片", command=self.export_image).pack( side=tk.RIGHT, fill=tk.X, expand=True) chart_container = ttk.LabelFrame(main_frame, text="成绩走势图", padding="10") chart_container.pack(side=tk.RIGHT, fill=tk.BOTH, expand=True) self.fig = Figure(figsize=(8, 6), dpi=100) self.ax = self.fig.add_subplot(111) self.canvas = FigureCanvasTkAgg(self.fig, chart_container) self.canvas.get_tk_widget().pack(fill=tk.BOTH, expand=True) self.update_lists() self.update_chart() def update_lists(self): students = list(self.students.keys()) self.student_combo["values"] = students if students: self.student_var.set(self.current_student or students[0]) if self.subjects: self.subject_combo["values"] = self.subjects if self.subjects: self.subject_var.set(self.current_subject or self.subjects[0]) def on_student_change(self, event=None): self.current_student = self.student_var.get() self.update_chart() def on_subject_change(self, event=None): self.current_subject = self.subject_var.get() self.update_chart() def calculate_statistics(self, scores): if not scores: return {} scores_array = np.array(scores) return { "count": len(scores), "max": np.max(scores_array), "min": np.min(scores_array), "mean": round(np.mean(scores_array), 2), "median": np.median(scores_array), "std": round(np.std(scores_array), 2), "sum": np.sum(scores_array) } def update_chart(self): if not self.current_student or not self.current_subject: return scores = self.students[self.current_student]["scores"][self.current_subject] exam_numbers = list(range(1, len(scores) + 1)) self.ax.clear() chart_type = self.chart_type_var.get() color = "steelblue" if chart_type == "折线图": self.ax.plot(exam_numbers, scores, 'o-', color=color, linewidth=2, markersize=8, label='成绩') if self.show_points.get(): for i, score in enumerate(scores): self.ax.annotate(f'{score}', (exam_numbers[i], score), xytext=(0, 10), textcoords='offset points', ha='center', fontsize=9) else: bars = self.ax.bar(exam_numbers, scores, color=color, alpha=0.7, label='成绩') if self.show_points.get(): for bar in bars: height = bar.get_height() self.ax.annotate(f'{height:.0f}', xy=(bar.get_x() + bar.get_width() / 2, height), xytext=(0, 3), textcoords='offset points', ha='center', va='bottom', fontsize=9) if self.show_trend_line.get() and chart_type == "折线图": z = np.polyfit(exam_numbers, scores, 1) p = np.poly1d(z) self.ax.plot(exam_numbers, p(exam_numbers), 'r--', alpha=0.7, linewidth=2, label='趋势线') if self.show_average_line.get(): avg_score = np.mean(scores) self.ax.axhline(y=avg_score, color='green', linestyle=':', linewidth=2, label=f'平均分: {avg_score:.1f}') student_info = self.students[self.current_student] title = f"{self.current_student} - {self.current_subject} 成绩走势图" self.ax.set_title(title, fontsize=14, fontweight='bold', pad=20) self.ax.set_xlabel('考试次数', fontsize=12) self.ax.set_ylabel('分数', fontsize=12) self.ax.set_xlim(0.5, len(scores) + 0.5) score_min = min(scores) - 5 score_max = max(scores) + 5 self.ax.set_ylim(max(0, score_min), min(100, score_max)) self.ax.grid(True, alpha=0.3) self.ax.legend(loc='upper left', bbox_to_anchor=(0, 1.1)) self.ax.spines['top'].set_visible(False) self.ax.spines['right'].set_visible(False) self.update_stats(scores) self.fig.tight_layout() self.canvas.draw() def update_stats(self, scores): stats = self.calculate_statistics(scores) self.stats_text.delete(1.0, tk.END) info = f"科目: {self.current_subject}\n" info += f"学生: {self.current_student}\n" info += f"考试次数: {stats['count']}\n" info += "-" * 20 + "\n" info += f"最高分: {stats['max']}\n" info += f"最低分: {stats['min']}\n" info += f"平均分: {stats['mean']}\n" info += f"总分: {stats['sum']}\n" info += f"标准差: {stats['std']}\n" info += f"中位数: {stats['median']}\n" info += "-" * 20 + "\n" if len(scores) > 1: trend = "上升" if scores[-1] > scores[0] else "下降" change = abs(scores[-1] - scores[0]) info += f"趋势: {trend} ({change}分)\n" avg = stats['mean'] if avg >= 90: grade = "优秀" elif avg >= 80: grade = "良好" elif avg >= 70: grade = "中等" elif avg >= 60: grade = "及格" else: grade = "不及格" info += f"评级: {grade}" self.stats_text.insert(1.0, info) def export_image(self): if not hasattr(self, 'fig'): return file_path = filedialog.asksaveasfilename( defaultextension=".png", filetypes=[ ("PNG图片", "*.png"), ("JPG图片", "*.jpg"), ("PDF文件", "*.pdf") ], initialfile=f"{self.current_student}_{self.current_subject}_成绩走势图.png" ) if file_path: try: self.fig.savefig(file_path, dpi=300, bbox_inches='tight') messagebox.showinfo("成功", f"图片已保存到:\n{file_path}") except Exception as e: messagebox.showerror("错误", f"保存失败:\n{str(e)}") def main(): root = tk.Tk() app = ScoreAnalysisTool(root) root.mainloop() if __name__ == "__main__": main()