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from flask import Flask, render_template_string app = Flask(__name__) # 在 app.py 中定义 HTML 模板字符串 html_template = """ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Hello Flask</title> </head> <body> <h1>Hello, {{ name }}</h1> </body> </html> """ # 定义路由，渲染 HTML 模板字符串 @app.route('/') def index(): return render_template_string(html_template, name='World') if __name__ == '__main__': app.run()