Python Show-Me-the-Code 第 0007 題 代碼統計

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第 0007 題：有個目錄，裡面是你自己寫過的程式，統計一下你寫過多少行代碼。包括空行和注釋，但是要分別列出來。

思路：擷取目錄，然後遍曆目錄下的代碼檔案，逐個統計每個檔案的代碼，然後最後匯總輸出。

0007.統計代碼.py

#!/usr/bin/env python#coding: utf-8import os, re# 代碼所在目錄FILE_PATH = ‘/home/bill/Desktop/github/show-me-the-code‘def analyze_code(codefilesource):    ‘‘‘    開啟一個py檔案，統計其中的程式碼數，包括空行和注釋    返回含該檔案總行數，注釋行數，空行數的列表    ‘‘‘    total_line = 0    comment_line = 0    blank_line = 0    with open(codefilesource) as f:        lines = f.readlines()        total_line = len(lines)        line_index = 0        # 遍曆每一行        while line_index < total_line:            line = lines[line_index]            # 檢查是否為注釋            if line.startswith("#"):                comment_line += 1            elif re.match("\s*‘‘‘", line) is not None:                comment_line += 1                while re.match(".*‘‘‘$", line) is None:                    line = lines[line_index]                    comment_line += 1                    line_index += 1            # 檢查是否為空白行            elif line == "\n":                blank_line += 1            line_index += 1    print "在%s中：" % codefilesource    print "程式碼數：", total_line    print "注釋行數：", comment_line, "占%0.2f%%" % (comment_line*100.0/total_line)    print "空行數：  ", blank_line, "占%0.2f%%" % (blank_line*100.0/total_line)    return [total_line, comment_line, blank_line]def run(FILE_PATH):    # 切換到code所在目錄    os.chdir(FILE_PATH)    # 遍曆該目錄下的py檔案    total_lines = 0    total_comment_lines = 0    total_blank_lines = 0    for i in os.listdir(os.getcwd()):        if os.path.splitext(i)[1] == ‘.py‘:            line = analyze_code(i)            total_lines, total_comment_lines, total_blank_lines = total_lines + line[0], total_comment_lines + line[1], total_blank_lines + line[2]    print "總程式碼數：", total_lines    print "總注釋行數：", total_comment_lines, "占%0.2f%%" % (total_comment_lines*100.0/total_lines)    print "總空行數：  ", total_blank_lines, "占%0.2f%%" % (total_blank_lines*100.0/total_lines)if __name__ == ‘__main__‘:    run(FILE_PATH)

效果：

Python Show-Me-the-Code 第 0007 題 代碼統計