- Android (Java/Kotlin)paztt.cn
Kotlin (Android Studio)
kotlin
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// Your code here
}
}
2. iOS (Swift/Objective-C)
Swift (Xcode)
swift
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
// Your code here
}
3. Web App (JavaScript/React/Vue/Angular)
React (JavaScript)
jsx
import React from ‘react’;
import ReactDOM from ‘react-dom’;
function App() {
return (
Hello, World!
{/* Your JSX code here */}
);
}
ReactDOM.render(, document.getElementById(‘root’));
4. 后端 (Python/Node.js/Java/Ruby/PHP)
Python (Flask)
python
from flask import Flask, render_template
app = Flask(name)
@app.route(‘/’)
def hello_world():
return render_template(‘index.html’) # Assuming you have an HTML template named ‘index.html’
if name == ‘main’:
app.run(debug=True)
5. 跨平台移动应用开发 (Flutter/React Native)
Flutter (Dart)
dart
import ‘package:flutter/material.dart’;
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: ‘Flutter Demo’,
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: Scaffold(
appBar: AppBar(
title: Text(‘Welcome to Flutter’),
),
body: Center(
child: Text(‘Hello, World!’),
),
),
);
}
}
请注意,这些只是非常基础的示例。为了开发一个完整的app,你还需要学习许多其他概念和工具,并根据你的需求选择适当的框架和库。由于创建一个完整的app代码涉及多个方面(如前端、后端、数据库、UI/UX设计等),并且每种电脑语言(如Java、Python、JavaScript、Swift、Kotlin等)都有其特定的用途和框架,所以在这里我将为你提供几种语言中的基础框架或代码片段来启动你的app项目。
- Android (Java/Kotlin)
Kotlin (Android Studio)
kotlin
import android.os.Bundle
import androidx.appcompat.app.AppCompatActivity
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// Your code here
}
}
2. iOS (Swift/Objective-C)
Swift (Xcode)
swift
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
// Your code here
}
3. Web App (JavaScript/React/Vue/Angular)
React (JavaScript)
jsx
import React from ‘react’;
import ReactDOM from ‘react-dom’;
function App() {
return (
Hello, World!
{/* Your JSX code here */}
);
}
ReactDOM.render(, document.getElementById(‘root’));
4. 后端 (Python/Node.js/Java/Ruby/PHP)
Python (Flask)
python
from flask import Flask, render_template
app = Flask(name)
@app.route(‘/’)
def hello_world():
return render_template(‘index.html’) # Assuming you have an HTML template named ‘index.html’
if name == ‘main’:
app.run(debug=True)
5. 跨平台移动应用开发 (Flutter/React Native)
Flutter (Dart)
dart
import ‘package:flutter/material.dart’;
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: ‘Flutter Demo’,
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: Scaffold(
appBar: AppBar(
title: Text(‘Welcome to Flutter’),
),
body: Center(
child: Text(‘Hello, World!’),
),
),
);
}
}
请注意,这些只是非常基础的示例。为了开发一个完整的app,你还需要学习许多其他概念和工具,并根据你的需求选择适当的框架和库。