first commit

app.py

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+from flask import Flask, render_template
+import os
+from datetime import datetime
+
+app = Flask(__name__)
+
+@app.route("/")
+def hello():
+    return '''Flask inside Docker!!<br><br>
+           <a href="/beautiful" style="display: inline-block; background-color: #3498db; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; font-family: Arial, sans-serif;">查看美观页面</a>'''
+
+@app.route("/beautiful")
+def beautiful_page():
+    current_time = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+    return render_template("beautiful.html", current_time=current_time)
+
+
+if __name__ == "__main__":
+    port = int(os.environ.get("PORT", 5000))
+    app.run(debug=True,host='0.0.0.0',port=port)