app=Flask(__name__)@app.route('/download')defdownload_file():# 读取文件内容file_content=read_file()# 创建响应对象response=make_response(file_content)# 设置响应头response.headers['Content-Disposition']='attachment; filename=f
read() # print(content) # 调用 close() 方法来关闭文件 # file_obj.close() # with ... as 语句# with open(file_name) as file_obj : # 在 with 语句中可以直接使用 file_obj 来做文件操作 # 此时这个文件只能在 with 中使用,一旦 with 结束则文件会自动 close() print(file_obj.read()) ...
def_format_addr(s):name,addr=parseaddr(s)returnformataddr((Header(name,'utf-8').encode(),addr))# 配置发件人/收件人 from_addr=input('From: ')password=input('Password: ')to_addr=input('To: ')smtp_server=input('SMTP server: ')# 配置邮件信息 msg=MIMEText('hello, send by Python......
return "home" @app.route("/index") def index(): return render_template("index.html") @app.route("/reback") def reback(): return redirect('/index') @app.route("/json") def my_jsonify(): # return jsonify({"a":1}) return {"k": "v"} @app.route("/myfile") def my_file()...
print(content) 1.open()内置函数,open底层调用的是操作系统的接口。 2.f1变量,又叫文件句柄,通常文件句柄命名有f1,fh,file_handler,f_h,对文件进行的任何操作,都得通过文件句柄.方法的形式。 3.encoding:可以不写。不写参数,默认的编码本是操作系统默认的编码本。windows默认gbk,linux默认utf-8,mac默认utf-8...
importosdefread_file(filename):ifos.path.exists(filename)isFalse:raiseFileNotFoundError('%s not exists'%(filename,)) f= open(filename,encoding='utf-8') content=f.read() f.close()returncontent 出于安全性考虑,当open后,一定要在合适的位置close, 上面这种写法繁琐,易出错 ...
from requests.exceptions import RequestException def save_website_title(url, filename): try: resp = requests.get(url) except RequestException as e: print(f'save failed: unable to get page content: {e}') return False # 这段正则操作本身就是不应该抛出异常的,所以我们没必要使用 try 语句块 #...
#1. 先读后写f1 =open('其他模式', encoding='utf-8', mode='r+')content = f1.read()print(content)f1.write('Python开发者')f1.close() #2. 先写后读(错误实例)f1 =open('其他模式', encoding='utf-8', mode='r+')f1.write('Python开发者'...
('flash'): return file_exist_on_master(file_path) else: return file_exist_on_slave(file_path) @ops_conn_operation def file_delete(file_path='', ops_conn=None): if file_path is None or file_path == '': logging.warning("The path of file is none or ''.") return ERR if not ...
f.write(word+'\n') f.write(content) print(f'成功将信息熵大于0.5的词语保存到了{dict_path}中')def data_read(path, col_name): df = read_excel(path) texts = df.loc[df[col_name].notna(), col_name].str.split() return textsif __name__ == '__main__': ...