夜光序言：

心随念走，身随缘走，不能靠心情活着，而是靠心态活着。

正文：Django模板语言入门

from django.shortcuts import render
from datetime import datetime
from django.http import HttpResponse, JsonResponse, FileResponse
from django.template import Template, Context
import os

# Genius：Create your views here.
def msgproc(request):
    datalist = []
    if request.method == "POST":
        userA = request.POST.get("userA", None)
        userB = request.POST.get("userB", None)
        msg = request.POST.get("msg", None)
        time = datetime.now()
        with open('msgdata.txt', 'a+') as f:
            f.write("{}--{}--{}--{}--\n".format(userB, userA,\
                            msg, time.strftime("%Y-%m-%d %H:%M:%S")))
    if request.method == "GET":
        userC = request.GET.get("userC", None)
        if userC != None:
            with open("msgdata.txt", "r") as f:
                cnt = 0
                for line in f:
                    linedata = line.split('--')
                    if linedata[0] == userC:
                        cnt = cnt + 1
                        d = {"userA":linedata[1], "msg":linedata[2]\
                             , "time":linedata[3]}
                        datalist.append(d)
                    if cnt >= 10:
                        break
    return render(request, "MsgSingleWeb.html", {"data":datalist})

def homeproc(request):
    response = HttpResponse()
    response.write("<h1>这是首页, 具体功能请访问<a href='./msggate'>这里</a></h1>")
    response.write("<h1>这是第二行</h1>")
    return response
    #return HttpResponse("<h1>Genius：这是首页，具体功能请访问<a href='./msggate'>这里</a></h1>")

def homeproc1(request):
    response = JsonResponse({'key': 'value1'})
    return response

def homeproc2(request):
    cwd = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
    response = FileResponse(open(cwd + "/msgapp/templates/PyLogo.png", "rb"))
    response['Content-Type'] = 'application/octet-stream'
    response['COntent-Disposition'] = 'attachment;filename="pylogo.png"'
    return response

def pgproc(request):
    template = Template("<h1>这个程序的名字是{{ name }}</h1>")
    context = Context({"name" : "实验平台"})
    return HttpResponse(template.render(context))