![](\"https:\/\/i.yimenyun.net\/2023-04\/07\/10\/24938289512.jpg\")
<\/figure>\n<\/p>\neturn (<\/p>\n
\n
{item}<\/p>\n
React\u662fFacebook\u5f00\u53d1\u7684\u4e00\u79cdJavaScript\u6846\u67b6\uff0c\u7528\u4e8e\u6784\u5efa\u7528\u6237\u754c\u9762\u3002\u5b83\u53ef\u4ee5\u8f7b\u677e\u5730\u6784\u5efa\u4ea4\u4e92\u5f0f\u7528\u6237\u754c\u9762\uff0c\u4f7f\u5f97\u6211\u4eec\u5f00\u53d1Web\u5e94\u7528\u66f4\u52a0\u9ad8\u6548\u53ef\u7ef4\u62a4\u3002\u5728\u8fd9\u91cc\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528React\u6765\u5f00\u53d1\u4e00\u4e2a\u79fb\u52a8\u5e94\u7528\u3002<\/p>\n
\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b89\u88c5React Native\uff0c\u5b83\u662f\u4e00\u4e2a\u57fa\u4e8eReact\u6846\u67b6\u7684\u79fb\u52a8\u5e94\u7528\u5f00\u53d1\u5de5\u5177\u3002React Native\u4f7f\u7528JavaScript\u8bed\u8a00\u8fdb\u884c\u5f00\u53d1\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684\u4ee3\u7801\u5e93\u6765\u5f00\u53d1iOS\u548cAndroid\u5e94\u7528\u3002\u5b89\u88c5React Native\u7684\u6b65\u9aa4\u53ef\u4ee5\u5728\u5176\u5b98\u7f51\u4e0a\u627e\u5230\u3002<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u9879\u76ee\u3002\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u521b\u5efa\u65b0\u5de5\u7a0b\uff1a<\/p>\n
“`<\/p>\n
react-native init MyApp<\/p>\n
“`<\/p>\n
\u63a5\u7740\u8fdb\u5165\u5230MyApp\u76ee\u5f55\u4e2d\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\uff1a<\/p>\n
“`<\/p>\n
cd MyApp<\/p>\n
react-native run-ios\/run-android<\/p>\n
“`<\/p>\n
\u8fd9\u4e9b\u547d\u4ee4\u5c06\u521b\u5efa\u5e76\u542f\u52a8\u65b0\u7684React Native\u9879\u76ee\u3002<\/p>\n
\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u8fdb\u5165\u5230\u9879\u76ee\u6839\u76ee\u5f55\u4e2d\uff0c\u66ff\u6362index.js\u6587\u4ef6\u7684\u5185\u5bb9\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
“`javascript<\/p>\n
import React, { Component } from ‘react’;<\/p>\n
import { StyleSheet, Text, View } from ‘react-native’;<\/p>\n
export default class App extends Component {<\/p>\n
render() {<\/p>\n
return (<\/p>\n
\n
Hello, World!<\/p>\n<\/p>\n
);<\/p>\n
}<\/p>\n
}<\/p>\n
const styles = StyleSheet.create({<\/p>\n
container: {<\/p>\n
flex: 1,<\/p>\n
justifyContent: ‘center’,<\/p>\n
alignItems: ‘center’,<\/p>\n
backgroundColor: ‘#F5FCFF’,<\/p>\n
},<\/p>\n
text: {<\/p>\n
fontSize: 20,<\/p>\n
textAlign: ‘center’,<\/p>\n
margin: 10,<\/p>\n
},<\/p>\n
});<\/p>\n
“`<\/p>\n
\u8fd0\u884c\u5e94\u7528\u7a0b\u5e8f\u540e\uff0c\u5c4f\u5e55\u4e0a\u5c06\u663e\u793a\u4e00\u4e2a\u201cHello, World\u201d\u6587\u672c\u3002<\/p>\n
\u73b0\u5728\u6211\u4eec\u5c06\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u6dfb\u52a0\u4e00\u4e9b\u66f4\u591a\u7684\u529f\u80fd\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528React Native\u63d0\u4f9b\u7684\u8bb8\u591a\u7ec4\u4ef6\u6765\u5e2e\u52a9\u6211\u4eec\u6784\u5efa\u5e94\u7528\u7a0b\u5e8f\u3002\u4f8b\u5982\uff0c\u201cTextInput\u201d\u7ec4\u4ef6\u7528\u4e8e\u8f93\u5165\u6587\u672c\uff0c\u201cButton\u201d\u7ec4\u4ef6\u7528\u4e8e\u6dfb\u52a0\u6309\u94ae\u7b49\u7b49\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u9879\u76ee\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u4e00\u4e9bReact Native\u7ec4\u4ef6\u7684\u4f7f\u7528\uff1a<\/p>\n
“`javascript<\/p>\n
import React, { Component } from ‘react’;<\/p>\n
import { StyleSheet, View, TextInput, Button, Alert } from ‘react-native’;<\/p>\n
export default class App extends Component {<\/p>\n
constructor(props) {<\/p>\n
super(props);<\/p>\n
this.state = {<\/p>\n
inputText: ”,<\/p>\n
allItems: []<\/p>\n
};<\/p>\n
}<\/p>\n
addItem = () => {<\/p>\n
const { inputText, allItems } = this.state;<\/p>\n
if (inputText !== ”) {<\/p>\n
this.setState({<\/p>\n
allItems: […allItems, inputText],<\/p>\n
inputText: ”<\/p>\n
});<\/p>\n
} else {<\/p>\n
Alert.alert(‘Error’, ‘Please enter item name’, [{ text: ‘OK’ }]);<\/p>\n
}<\/p>\n
}<\/p>\n
render() {<\/p>\n
const { inputText, allItems } = this.state;<\/p>\n
const items = allItems.map((item, index) => {<\/p>\n
r<\/p>\n
eturn (<\/p>\n \n {item}<\/p>\n <\/figure>\n<\/p>\n