怎么用Python寫一個網頁程序？

直接上代碼

1、服務器接口

import flask, os,sys,time

from flask import request, send_from_directory

interface_path = os.path.dirname(__file__)

sys.path.insert(0, interface_path) #將當前文件的父目錄加入臨時系統變量

server = flask.Flask(__name__)

#get方法：指定目錄下載文件

@server.route('/download', methods=['get'])

def download():

fpath = request.values.get('path', '') #獲取文件路徑

fname = request.values.get('filename', '') #獲取文件名

if fname.strip() and fpath.strip():

print(fname, fpath)

if os.path.isfile(os.path.join(fpath,fname)) and os.path.isdir(fpath):

return send_from_directory(fpath, fname, as_attachment=True) #返回要下載的文件內容給客戶端

else:

return '{"msg":"參數不正確"}'

else:

return '{"msg":"請輸入參數"}'

# get方法：查詢當前路徑下的所有文件

@server.route('/getfiles', methods=['get'])

def getfiles():

fpath = request.values.get('fpath', '') #獲取用戶輸入的目錄

print(fpath)

if os.path.isdir(fpath):

filelist = os.listdir(fpath)

files = [file for file in filelist if os.path.isfile(os.path.join(fpath, file))]

return '{"files":"%s"}' % files

# post方法：上傳文件的

@server.route('/upload', methods=['post'])

def upload():

fname = request.files.get('file') #獲取上傳的文件

if fname:

t = time.strftime('%Y%m%d%H%M%S')

new_fname = r'upload/' + t + fname.filename

fname.save(new_fname) #保存文件到指定路徑

return '{"code": "ok"}'

else:

return '{"msg": "請上傳文件！"}'

server.run(port=8000, debug=True)

2、客戶端請求

import requests

import os

#上傳文件到服務器

file = {'file': open('hello.txt','rb')}

r = requests.post('http://127.0.0.1:8000/upload', files=file)

print(r.text)

#查詢fpath下的所有文件

r1 = requests.get('http://127.0.0.1:8000/getfiles',data={'fpath': r'download/'})

print(r1.text)

#下載服務器download目錄下的指定文件

r2 = requests.get('http://127.0.0.1:8000/download',data={'filename':'hello_upload.txt', 'path': r'upload/'})

file = r2.text #獲取文件內容

basepath = os.path.join(os.path.dirname(__file__), r'download/')

with open(os.path.join(basepath, 'hello_download.txt'),'w',encoding='utf-8') as f: #保存文件

f.write(file)