一、全局函数
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二、目录与代码
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app.py
from flask import Flask,render_template,render_template_string,g,url_for
app = Flask(__name__)
app.jinja_env.add_extension('jinja2.ext.loopcontrols')
@app.route("/index")
def index():
return render_template("index.html")
@app.route("/tag")
def tag():
return render_template("tag.html")
@app.route('/gf')
def global_func():
"""模板全局函数的使用"""
return render_template("global_func.html")
if __name__ == '__main__':
app.run(debug=True)
global_func.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>全局函数的使用</title>
<link rel='stylesheet' href = "{{ url_for('static',filename = 'style.css')}}">
<style type = "text/css">
.row1{
color: #ff0000;
}
.row2{
color: #0000ff;
}
</style>
</head>
<body>
<h3>url_for的使用</h3>
<a href = "{{ url_for('index')}}">回到首页</a>
<a href = "{{ url_for('tag')}}">跳转到标签练习页</a>
<h3>range函数的使用</h3>
{% for i in range(5) %}
<p>{{ i }}</p>
{% endfor %}
<h3>cycler函数的使用</h3>
{% set class_name = cycler('row1','row2') %}
{% for i in range(100) %}
<p class = "{{ class_name.next()}}">{{ i }}</p>
{% endfor %}
</body>
</html>
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