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這篇“flask結(jié)合jinja2使用的方法是什么”文章的知識(shí)點(diǎn)大部分人都不太理解,所以小編給大家總結(jié)了以下內(nèi)容,內(nèi)容詳細(xì),步驟清晰,具有一定的借鑒價(jià)值,希望大家閱讀完這篇文章能有所收獲,下面我們一起來看看這篇“flask結(jié)合jinja2使用的方法是什么”文章吧。
app.py
from flask import Flask,render_template,request app = Flask(__name__) @app.route('/') def hello_world(): return render_template('index.html') @app.route('/blog/<int:blog_id>') def blog(blog_id): page = request.args.get('page', default=1, type=int) return render_template('blog.html',id=blog_id,page=page) if __name__ == '__main__': app.run()
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>coleak's page</title> </head> <body> <h2>START</h2> <h3>coleak2</h3> <h4>coleak3</h4> <h5>coleak4</h5> <h6>coleak5</h6> <h2>END</h2> </body> </html>
blog.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <h2>這里是第{{ id }}位博客主的第{{ page }}頁博客</h2> </body> </html>
效果測(cè)試
http://10.133.5.113:8000
http://10.133.5.113:8000/blog/3
http://10.133.5.113:8000/blog/3?page=6
app.py
from flask import Flask,render_template,request app = Flask(__name__) class user: def __init__(self,username,email): self.username=username self.email=email @app.route('/') def hello_world(): User=user('coleak','123@163.com') person={ "username":"coleak", "email":"123@666.com" } return render_template('index.html',user=User,person=person) @app.route('/blog/<int:blog_id>') def blog(blog_id): page = request.args.get('page', default=1, type=int) return render_template('blog.html',id=blog_id,page=page) if __name__ == '__main__': app.run()
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>coleak's page</title> </head> <body> <h2>START</h2> <div><h2>welcome {{ user.username }}</h2></div> <div><h2>你的別名是{{ person.username }},郵箱是{{ person["email"] }}</h2></div> <h3>coleak2</h3> <h4>coleak3</h4> <h5>coleak4</h5> <h6>coleak5</h6> <h2>END</h2> </body> </html>
效果測(cè)試
可以將過濾器應(yīng)用于數(shù)據(jù)以對(duì)其進(jìn)行修改。 例如,sum 篩選器可以對(duì)數(shù)據(jù)求和,escape 篩選器對(duì)它們進(jìn)行轉(zhuǎn)義,sort 篩選器對(duì)它們進(jìn)行排序。
app.py
from flask import Flask,render_template,request app = Flask(__name__) class user: def __init__(self,username,email): self.username=username self.email=email @app.route('/') def hello_world(): User=user('coleak','123@163.com') person={ "username":"coleak", "email":"123@666.com" } return render_template('index.html',user=User,person=person) @app.route('/filter') def filter(): User1=user('coleak',-123.456) return render_template("filter.html",user=User1) if __name__ == '__main__': app.run()
filter.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>過濾器</title> </head> <body> <div>{{ user.username }}長(zhǎng)度為{{ user.username|length }}</div> <div>{{ user.email }}絕對(duì)值為{{ user.email|abs }}</div> </body> </html>
效果測(cè)試
app.py
from flask import Flask,render_template,request from datetime import datetime app = Flask(__name__) def my_filter(value,format="%Y年-%m月-%d日 %H時(shí):%M分"): return value.strftime(format) class user: def __init__(self,username,email): self.username=username self.email=email app.add_template_filter(my_filter,"time_filter") @app.route('/') def hello_world(): User=user('coleak','123@163.com') person={ "username":"coleak", "email":"123@666.com" } return render_template('index.html',user=User,person=person) @app.route('/filter') def filter(): mytime=datetime.now() User1=user('coleak',-123.456) return render_template("filter.html",user=User1,mytime=mytime) if __name__ == '__main__': app.run()
filter.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>過濾器</title> </head> <body> <div>{{ mytime }}過濾后為{{ mytime|time_filter }}</div> </body> </html>
效果測(cè)試
app.py
from flask import Flask,render_template,request from datetime import datetime app = Flask(__name__) class user: def __init__(self,username,email): self.username=username self.email=email @app.route('/') def hello_world(): User=user('coleak','123@163.com') person={ "username":"coleak", "email":"123@666.com" } return render_template('index.html',user=User,person=person) @app.route('/control') def control(): age=request.args.get('age') age=int (age) books=[{"name":"boo1",'price':12},{"name":"boo2",'price':18},{"name":"book3",'price':21}] return render_template('control.html',age=age,books=books) if __name__ == '__main__': app.run()
control.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>控制語句</title> </head> <body> <div> {% if age>18 %} <h3>可以進(jìn)入網(wǎng)吧</h3> {% elif age==18 %} <h3>家長(zhǎng)陪同下進(jìn)入網(wǎng)吧</h3> {% else %} <h3>不可以進(jìn)入網(wǎng)吧</h3> {% endif %} </div> <div> {% for book in books %} <p>名稱:{{ book.name }}</p> <p>價(jià)格:{{ book.price }}</p> {% endfor %} </div> </body> </html>
效果測(cè)試
模板繼承是一項(xiàng)強(qiáng)大的功能,可減少代碼重復(fù)并改善代碼組織。 我們定義了一個(gè)基本模板,其他模板文件也從中繼承。 這些模板文件將覆蓋基本模板文件的特定塊。
app.py
from flask import Flask,render_template,request from datetime import datetime app = Flask(__name__) class user: def __init__(self,username,email): self.username=username self.email=email @app.route('/') def hello_world(): User=user('coleak','123@163.com') person={ "username":"coleak", "email":"123@666.com" } return render_template('index.html',user=User,person=person) @app.route('/base') def base(): return render_template("base.html") @app.route('/ch2') def ch2(): return render_template("ch2.html") @app.route('/ch3') def ch3(): return render_template("ch3.html") if __name__ == '__main__': app.run()
base.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>{% block title %}{% endblock %}</title> </head> <body> {% block body %} {% endblock %} </body> </html>
ch2.html
{% extends "base.html" %} {% block title %} ch2的標(biāo)題 {% endblock %} {% block body %} <div>ch2的body</div> {% endblock %}
ch2.html
{% extends "base.html" %} {% block title %} ch3的標(biāo)題 {% endblock %} {% block body %} <div>ch3的body</div> {% endblock %}
結(jié)構(gòu)框架
add.py
from flask import Flask,render_template,request from datetime import datetime app = Flask(__name__) class user: def __init__(self,username,email): self.username=username self.email=email @app.route('/') def hello_world(): User=user('coleak','123@163.com') person={ "username":"coleak", "email":"123@666.com" } return render_template('index.html',user=User,person=person) @app.route('/static') def static_use(): return render_template("static.html") if __name__ == '__main__': app.run()
static.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>static</title> <link rel="stylesheet" href="{{ url_for('static',filename=" rel="external nofollow" css/style.css") }}"> <script src="{{ url_for('static',filename="js/myjs.js") }}"></script> </head> <body> <img src="{{ url_for('static',filename="images/flask.jpg") }}"></img> </body> </html>
myjs.js
alert('coleak');
style.css
body{ background-color: pink; }
flask.jpg
效果測(cè)試
以上就是關(guān)于“flask結(jié)合jinja2使用的方法是什么”這篇文章的內(nèi)容,相信大家都有了一定的了解,希望小編分享的內(nèi)容對(duì)大家有幫助,若想了解更多相關(guān)的知識(shí)內(nèi)容,請(qǐng)關(guān)注億速云行業(yè)資訊頻道。
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