from flask import Flask,render_template,request,send_file
from werkzeug.utils import secure_filename
#创建app
app = Flask(__name__)
#上传文件-网页端
html_code = '<!DOCTYPE html>' \
'<html lang="en">' \
'<head><meta charset="UTF-8"><title>Title</title></head>' \
'<body><form action="/" enctype="multipart/form-data" method="post">' \
'<input type="file" name="file">' \
'<input type="submit" value="上传"></form>' \
'</body></html>'
#上传文件
@app.route('/',methods=['POST','GET'])
def upload_file():
#请求为POST
if request.method =='POST':
#html中 读取input标签 name = ”file“ 中的文件
f = request.files['file'] #中括号！！
#secure_filename
filename = secure_filename(f.filename)
f.save(filename)
return "successfully"
else:return html_code
#下载文件
@app.route('/<filename>') #输入文件名
def download_file(filename):
#返回 参数：as_attachment 是否可下载
#浏览器输入：http://127.0.0.1:5000/文件名.后缀
# 即可下载
return send_file(filename,as_attachment=True)
#运行
if __name__ == '__main__':
app.run()
标签：__,文件,flask,app,filename,file,上传,下载 From： https://www.cnblogs.com/lingsong/p/16790248.html