原创

Flask(5)-Jinja2模板使用（传参）

传参方式一

# app.py

from flask import Flask, render_template

app = Flask(__name__)

@app.route("/index/")
def index():
    # 传递参数username,必须是关键字参数
    return render_template("index.html", username="hahahahah")

if __name__ == '__main__':
    app.run(debug=True)

<!-- index.html-->
<!DOCTYPE html>
<html lang="zh-en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>index</title>
</head>
<body>
<h1>Index</h1>
<!--接收传递的参数-->
<h1>{
  { username }}</h1>
</body>
</html>

传参方式二

# app.py

from flask import Flask, render_template

app = Flask(__name__)

@app.route("/index/")
def index():
    res = {
        "username": "hahahaha",
        "age": 20
    }
    # return render_template("index.html", res = res)   模板里调用{
  {res.username}}
    return render_template("index.html", **res)
    
if __name__ == '__main__':
    app.run(debug=True)

<!-- index.html -->

<!DOCTYPE html>
<html lang="zh-en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>index</title>
</head>
<body>
<h1>Index</h1>

<!-- <h1>{
  { res.username }}</h1> 后端传参方式 return render_template("index.html", res=res)-->
<h1>{
  { username }}</h1>

</body>
</html>

正文到此结束