python第18天学习记录

来源：互联网发布：男士抓绒外衣淘宝编辑：程序博客网时间：2024/06/05 23:39

JS正则

test - 判断字符串是否符合规定的正则

rep = /\d+/;rep.test("asdfoiklfasdf89asdfasdf")# truerep = /^\d+$/;rep.test("asdfoiklfasdf89asdfasdf")# true

exec - 获取匹配的数据

rep = /\d+/;str = "wangshen_67_houyafa_20"rep.exec(str)# ["67"]JavaScript is more fun than Java or JavaBeans!var pattern = /\bJava(\w*)\b/;# ["JavaScript", "Script"]JavaScript is more fun than Java or JavaBeans!var pattern = /\bJava\w*\b/g;# ["JavaScript"]# ["Java"]# ["JavaBeans"]# nullJavaScript is more fun than Java or JavaBeans!var pattern = /\bJava(\w*)\b/g;# ["JavaScript",'Script']# ["Java", ""]# ["JavaBeans", "Beans"]# null

Django

1、创建Django工程

    django-admin startproject 工程名

2、创建APP

    cd 工程名    python manage.py startapp cmdb

3、静态文件

    project.settings.py    STATICFILES_DIRS = (        os.path.join(BASE_DIR, "static"),    )

4、模板路径

    DIRS ==>    [os.path.join(BASE_DIR,'templates'),]

5、settings中

    middlerware        # 注释 csrf

6、定义路由规则

    url.py        "login" --> 函数名

7、定义视图函数

    app下views.py    def func(request):        # request.method   GET / POST        # http://127.0.0.1:8009/home?nid=123&name=alex        # request.GET.get('',None)   # 获取请求发来的而数据        # request.POST.get('',None)        # return HttpResponse("字符串")        # return render(request, "HTML模板的路径")        # return redirect('/只能填URL')

8、模板渲染
特殊的模板语言

– {{ 变量名 }}

def func(request):    return render(request, "index.html", {'current_user': "alex"})index.html<html>..    <body>        <div>{{current_user}}</div>    </body></html>====> 最后生成的字符串<html>..    <body>        <div>alex</div>    </body></html>

– For循环

def func(request):    return render(request, "index.html", {'current_user': "alex", 'user_list': ['alex','eric']})index.html<html>..    <body>        <div>{{current_user}}</div>        <ul>            {% for row in user_list %}                {% if row == "alex" %}                    <li>{{ row }}</li>                {% endif %}            {% endfor %}        </ul>    </body></html>

索引

def func(request):    return render(request, "index.html", {                'current_user': "alex",                'user_list': ['alex','eric'],                'user_dict': {'k1': 'v1', 'k2': 'v2'}})index.html<html>..    <body>        <div>{{current_user}}</div>        <a> {{ user_list.1 }} </a>        <a> {{ user_dict.k1 }} </a>        <a> {{ user_dict.k2 }} </a>    </body></html>

条件

def func(request):    return render(request, "index.html", {                'current_user': "alex",                "age": 18,                'user_list': ['alex','eric'],                'user_dict': {'k1': 'v1', 'k2': 'v2'}})index.html<html>..    <body>        <div>{{current_user}}</div>        <a> {{ user_list.1 }} </a>        <a> {{ user_dict.k1 }} </a>        <a> {{ user_dict.k2 }} </a>        {% if age %}            <a>有年龄</a>            {% if age > 16 %}                <a>老男人</a>            {% else %}                <a>小鲜肉</a>            {% endif %}        {% else %}            <a>无年龄</a>        {% endif %}    </body></html>

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