Python 我的方法

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def del_blank_line(filename):  # 清除檔案空白行    """    清除檔案空白行空白行    :param filename: 檔案名稱    :return: True 成功；False 失敗    """    try:        with open(filename, "r+", encoding="utf-8") as infp:            lines = infp.readlines()  # 把源檔案內容讀出來儲存在lines中        with open(filename, "w+", encoding="utf-8") as outfp:            for li in lines:                if li.split():  # 判斷是否為空白行                    outfp.writelines(li)  # 將操作後的源檔案覆蓋寫回    except IOError:        print("%s 檔案不存在或無操作許可權" % filename)        return False    else:        return True

清除檔案空白行

def get_ip_list(filename, repeat=False):    """    在檔案中擷取合法的IP地址    :param filename: 檔案名稱    :param repeat: 去除重複行，True去除，False不去除    :return: 返回ip地址序列    """    import re    try:        with open(filename, "r", encoding="utf-8") as file1:            line = file1.read()            pattern = re.compile(                r"(?:\b(?:\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])\b\.){3}(?:\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])\b")            list_ip = pattern.findall(line)            if len(list_ip) == 0:                return list_ip    except IOError:        print("%s 檔案不存在或無操作許可權" % filename)        return False    else:        if repeat == True:            return set(list_ip)        elif repeat == False:            return list_ip

在檔案中擷取合法的IP地址

def get_check_code(n = 6):    """    擷取有大小寫字母、數字組成的隨機n位驗證碼    :param num: 驗證碼位元，預設為6    :return: 返回n位驗證碼    """    import random    check_code = str()    code = str()    for i in range(n):        ret = random.randint(0, 9)        if ret == 0 or ret == 1 or ret == 4 or ret == 7:            code = str(ret)        elif ret == 2 or ret == 5 or ret == 8:            code = chr(random.randint(65, 90))        elif ret == 3 or ret == 6 or ret == 9:            code = chr(random.randint(97, 122))        check_code = check_code + code    return check_code

擷取n位隨機驗證碼

 

Python 我的方法