代码行数统计工具：递归扫描项目目录、按编程语言分类统计代码/注释/空行占比

🖥️ 运行效果

🚀 实例简介

一款实用的代码行数统计桌面工具，支持递归扫描项目目录，自动识别30+编程语言，智能区分代码行、注释行、空行，以可视化卡片+表格形式展示统计结果。支持多线程扫描，不阻塞GUI界面。

💻 核心代码

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
代码行数统计工具 - 递归扫描项目目录，按编程语言分类统计代码行数
支持30+编程语言识别，可视化展示代码/注释/空行占比
"""
import tkinter as tk
from tkinter import ttk, filedialog, messagebox
import os
import platform
import threading

CHINESE_FONT = "WenQuanYi Zen Hei" if platform.system() == "Linux" else "Microsoft YaHei"

# 语言扩展名映射
LANG_MAP = {
    ".py": "Python", ".js": "JavaScript", ".ts": "TypeScript", ".java": "Java",
    ".c": "C", ".cpp": "C++", ".h": "C/C++ Header", ".cs": "C#", ".go": "Go",
    ".rb": "Ruby", ".php": "PHP", ".swift": "Swift", ".kt": "Kotlin",
    ".rs": "Rust", ".scala": "Scala", ".r": "R", ".lua": "Lua",
    ".sh": "Shell", ".bat": "Batch", ".ps1": "PowerShell",
    ".html": "HTML", ".css": "CSS", ".scss": "SCSS", ".less": "LESS",
    ".sql": "SQL", ".xml": "XML", ".json": "JSON", ".yaml": "YAML", ".yml": "YAML",
    ".md": "Markdown", ".txt": "Text", ".ini": "Config", ".toml": "Config",
    ".vue": "Vue", ".jsx": "JSX", ".tsx": "TSX", ".dart": "Dart",
}

class CodeCounterApp:
    def __init__(self, root):
        self.root = root
        self.root.title("代码行数统计工具 v1.0")
        self.root.geometry("820x580")
        self.root.configure(bg="#f0f2f5")
        self.results = {}  # {语言: {"files": 0, "code": 0, "comment": 0, "blank": 0}}

        # 顶部标题栏
        header = tk.Frame(root, bg="#1a73e8", height=50)
        header.pack(fill=tk.X)
        header.pack_propagate(False)
        tk.Label(header, text="📊 代码行数统计工具", font=(CHINESE_FONT, 16, "bold"),
                 bg="#1a73e8", fg="white").pack(side=tk.LEFT, padx=15, pady=10)

        # 操作区
        ctrl = tk.Frame(root, bg="#f0f2f5")
        ctrl.pack(fill=tk.X, padx=10, pady=8)
        self.path_var = tk.StringVar(value="请选择项目目录...")
        tk.Entry(ctrl, textvariable=self.path_var, font=(CHINESE_FONT, 11),
                 width=55, state="readonly").pack(side=tk.LEFT, padx=(0, 8))
        tk.Button(ctrl, text="📁 选择目录", font=(CHINESE_FONT, 11), bg="#1a73e8",
                  fg="white", relief=tk.FLAT, cursor="hand2",
                  command=self.select_dir).pack(side=tk.LEFT, padx=3)
        tk.Button(ctrl, text="🔍 开始统计", font=(CHINESE_FONT, 11), bg="#34a853",
                  fg="white", relief=tk.FLAT, cursor="hand2",
                  command=self.start_scan).pack(side=tk.LEFT, padx=3)

        # 统计卡片区
        cards = tk.Frame(root, bg="#f0f2f5")
        cards.pack(fill=tk.X, padx=10, pady=5)
        self.card_labels = {}
        card_config = [
            ("total_files", "📄 总文件数", "#1a73e8"),
            ("total_lines", "📝 总行数", "#34a853"),
            ("code_lines", "💻 代码行", "#f28b30"),
            ("comment_lines", "📖 注释行", "#9c27b0"),
        ]
        for key, label, color in card_config:
            f = tk.Frame(cards, bg="white", relief=tk.RAISED, bd=1)
            f.pack(side=tk.LEFT, fill=tk.BOTH, expand=True, padx=3)
            tk.Label(f, text=label, font=(CHINESE_FONT, 10), bg="white", fg="#666").pack(pady=(8, 0))
            self.card_labels[key] = tk.Label(f, text="0", font=(CHINESE_FONT, 18, "bold"),
                                              bg="white", fg=color)
            self.card_labels[key].pack(pady=(0, 8))

        # 结果表格
        tree_frame = tk.Frame(root, bg="#f0f2f5")
        tree_frame.pack(fill=tk.BOTH, expand=True, padx=10, pady=5)
        cols = ("language", "files", "code", "comment", "blank", "total")
        self.tree = ttk.Treeview(tree_frame, columns=cols, show="headings", height=12)
        for c, w, t in zip(cols, [120, 80, 100, 100, 80, 100],
                           ["语言", "文件数", "代码行", "注释行", "空行", "总行数"]):

💡 适用场景

办公自动化、数据分析、快速原型开发