import tkinter as tk import time import threading class StopwatchApp: def __init__(self, root): self.root = root self.root.title("014. 计时器") self.root.geometry("400x520") self.root.resizable(False, False) # 状态 self.running = False self.paused = False self.mode = "stopwatch" # stopwatch / countdown self.start_time = 0 self.elapsed = 0 self.laps = [] self.build_ui() def build_ui(self): # ===== 标题 ===== tk.Label( self.root, text="⏱️ 计时器", font=("微软雅黑", 18, "bold") ).pack(pady=10) # ===== 模式切换 ===== mode_frame = tk.Frame(self.root) mode_frame.pack() self.mode_var = tk.StringVar(value="stopwatch") tk.Radiobutton( mode_frame, text="正计时", variable=self.mode_var, value="stopwatch", command=self.switch_mode ).pack(side=tk.LEFT, padx=10) tk.Radiobutton( mode_frame, text="倒计时", variable=self.mode_var, value="countdown", command=self.switch_mode ).pack(side=tk.LEFT, padx=10) # ===== 倒计时设置 ===== self.set_frame = tk.Frame(self.root) self.set_frame.pack(pady=5) tk.Label(self.set_frame, text="设定时间：").pack(side=tk.LEFT) self.hour_spin = tk.Spinbox(self.set_frame, from_=0, to=23, width=3) self.hour_spin.pack(side=tk.LEFT, padx=2) tk.Label(self.set_frame, text="时").pack(side=tk.LEFT) self.min_spin = tk.Spinbox(self.set_frame, from_=0, to=59, width=3) self.min_spin.pack(side=tk.LEFT, padx=2) tk.Label(self.set_frame, text="分").pack(side=tk.LEFT) self.sec_spin = tk.Spinbox(self.set_frame, from_=0, to=59, width=3) self.sec_spin.pack(side=tk.LEFT, padx=2) tk.Label(self.set_frame, text="秒").pack(side=tk.LEFT) # ===== 时间显示 ===== self.time_label = tk.Label( self.root, text="00:00.00", font=("Consolas", 40, "bold"), fg="#1565C0" ) self.time_label.pack(pady=15) # ===== 进度条（倒计时用） ===== self.progress = tk.Scale( self.root, from_=0, to=100, orient=tk.HORIZONTAL, length=300, sliderlength=0, troughcolor="#e0e0e0", activebackground="#1565C0", showvalue=False ) self.progress.set(0) self.progress.pack(pady=5) # ===== 控制按钮 ===== ctrl_frame = tk.Frame(self.root) ctrl_frame.pack(pady=10) self.start_btn = tk.Button( ctrl_frame, text="▶ 开始", width=10, bg="#4CAF50", fg="white", font=("微软雅黑", 10), command=self.start ) self.start_btn.pack(side=tk.LEFT, padx=5) self.pause_btn = tk.Button( ctrl_frame, text="⏸ 暂停", width=10, bg="#FF9800", fg="white", font=("微软雅黑", 10), command=self.toggle_pause ) self.pause_btn.pack(side=tk.LEFT, padx=5) self.lap_btn = tk.Button( ctrl_frame, text="🏁 计次", width=10, bg="#2196F3", fg="white", font=("微软雅黑", 10), command=self.lap ) self.lap_btn.pack(side=tk.LEFT, padx=5) self.reset_btn = tk.Button( ctrl_frame, text="↺ 重置", width=10, bg="#f44336", fg="white", font=("微软雅黑", 10), command=self.reset ) self.reset_btn.pack(side=tk.LEFT, padx=5) # ===== 计次列表 ===== tk.Label(self.root, text="— 计次记录 —", font=("微软雅黑", 10)).pack() self.lap_list = tk.Listbox(self.root, width=35, height=6, font=("Consolas", 10)) self.lap_list.pack(pady=5) def switch_mode(self): self.mode = self.mode_var.get() self.reset() if self.mode == "countdown": self.set_frame.pack(pady=5) self.progress.pack(pady=5) else: self.set_frame.pack_forget() self.progress.pack_forget() def format_time(self, ms): total_sec = int(ms / 1000) hours = total_sec // 3600 minutes = (total_sec % 3600) // 60 seconds = total_sec % 60 centisec = (ms // 10) % 100 if hours > 0: return f"{hours:02d}:{minutes:02d}:{seconds:02d}.{centisec:02d}" return f"{minutes:02d}:{seconds:02d}.{centisec:02d}" def start(self): if self.running: return self.running = True self.paused = False self.start_btn.config(state="disabled") self.pause_btn.config(text="⏸ 暂停") if self.mode == "countdown": h = int(self.hour_spin.get()) m = int(self.min_spin.get()) s = int(self.sec_spin.get()) self.countdown_total = (h * 3600 + m * 60 + s) * 1000 self.countdown_remaining = self.countdown_total self.set_frame.pack_forget() threading.Thread(target=self.run_countdown, daemon=True).start() else: self.elapsed = 0 self.start_time = time.time() * 1000 threading.Thread(target=self.run_stopwatch, daemon=True).start() def run_stopwatch(self): while self.running: if not self.paused: now = time.time() * 1000 self.elapsed = int(now - self.start_time) self.root.after(0, lambda: self.time_label.config( text=self.format_time(self.elapsed) )) time.sleep(0.05) def run_countdown(self): while self.running and self.countdown_remaining > 0: if not self.paused: self.countdown_remaining -= 50 self.root.after(0, lambda: [ self.time_label.config(text=self.format_time(self.countdown_remaining)), self.progress.set(100 - self.countdown_remaining / self.countdown_total * 100) ]) time.sleep(0.05) if self.countdown_remaining <= 0: self.root.after(0, self.finish_countdown) def finish_countdown(self): self.running = False self.time_label.config(text="⏰ 时间到！") self.progress.set(100) self.start_btn.config(state="normal") # 弹窗提醒 import winsound winsound.MessageBeep(winsound.MB_ICONEXCLAMATION) tk.messagebox.showinfo("计时器", "⏰ 倒计时结束！") def toggle_pause(self): if not self.running: return self.paused = not self.paused self.pause_btn.config(text="▶ 继续" if self.paused else "⏸ 暂停") def lap(self): if not self.running: return self.laps.append(self.elapsed if self.mode == "stopwatch" else self.countdown_remaining) idx = len(self.laps) if self.mode == "stopwatch": prev = self.laps[-2] if len(self.laps) > 1 else 0 lap_time = self.elapsed - prev text = f"计次 {idx}: {self.format_time(self.elapsed)} (间隔: {self.format_time(lap_time)})" else: elapsed_total = self.countdown_total - self.countdown_remaining text = f"计次 {idx}: {self.format_time(elapsed_total)}" self.lap_list.insert(tk.END, text) self.lap_list.see(tk.END) def reset(self): self.running = False self.paused = False self.elapsed = 0 self.laps.clear() self.lap_list.delete(0, tk.END) self.time_label.config(text="00:00.00") self.progress.set(0) self.start_btn.config(state="normal") self.pause_btn.config(text="⏸ 暂停") if __name__ == "__main__": root = tk.Tk() app = StopwatchApp(root) root.mainloop()