摘要：搭建項目有三種安裝的方式，想了解的登錄官網(wǎng)查看，今天介紹的一個自動安裝的不需要怎么配置環(huán)境，自動生成的方式，類似于并實現(xiàn)一個小案例，留言功能官網(wǎng)的安裝教程安裝依次安裝最終啟動自后會出現(xiàn)一個頁面大家可以去試試下邊我們配置一

React有三種安裝的方式，想了解的登錄React官網(wǎng)查看，今天介紹的一個自動安裝的不需要怎么配置環(huán)境，自動生成的方式，類似于vue-cli！并實現(xiàn)一個小案例，留言功能！

官網(wǎng)的安裝教程！

//依次安裝
npm install -g create-react-app
create-react-app my-app

cd my-app
npm start

最終啟動自后會出現(xiàn)一個Welcome React頁面,
大家可以去試試.

下邊我們配置一下項目結構

npm file-loader url url-loader --save-dev

rules: [
     {test: /.js$/, exclude: /node_modules/, loader: "react-hot-loader!babel-loader"},
     {test: /.css$/, exclude: /node_modules/, loader: "style-loader!css-loader"},
     { test: /.eot(?v=d+.d+.d+)?$/, loader: "file-loader" },
     { test: /.(woff|woff2)$/, loader:"url-loader?prefix=font/&limit=5000" },
     { test: /.ttf(?v=d+.d+.d+)?$/, loader: "url-loader?limit=10000&mimetype=application/octet-stream" },
     { test: /.svg(?v=d+.d+.d+)?$/, loader: "url-loader?limit=10000&mimetype=image/svg+xml" }
  ]

我們加以改造

module.exports = {
  entry: "./index.js",
  output: {
    path:path.resolve(__dirname,"build"),
    publicPath:"/assets/",
    filename: "bundle.js"
  },
  module: {
      rules: [
    { test: /.js$/, exclude: /node_modules/, loader: "react-hot-loader!babel-loader" },
    { test: /.css$/, exclude: /node_modules/, loader: "style-loader!css-loader" },
    { test: /.eot(?v=d+.d+.d+)?$/, loader: "file-loader" },  //添加
    { test: /.(woff|woff2)$/, loader:"url-loader?prefix=font/&limit=5000" }, //添加
    { test: /.ttf(?v=d+.d+.d+)?$/, loader: "url-loader?limit=10000&mimetype=application/octet-stream" }, //添加
    { test: /.svg(?v=d+.d+.d+)?$/, loader: "url-loader?limit=10000&mimetype=image/svg+xml" } //添加
      ]
    } 
}    

{
  "name": "myapp",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "antd-mobile": "^1.5.0",
    "react": "^15.6.1",
    "react-dom": "^15.6.1",
    "react-scripts": "1.0.10"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test --env=jsdom",
    "eject": "react-scripts eject"
  },
  "devDependencies": {
    "babel-plugin-import": "^1.2.1",
    "node-sass": "^4.5.3",
    "sass-loader": "^6.0.6"
  }
}

npm install

我們的bootstap是事先安裝完成之后，把他移動到css項目目錄下的，index配置如下

//入口文件index.js下
import React from "react";
import ReactDOM from "react-dom";
import LiuYanapp from "./LiuYanapp";

import "./bootstrap/css/bootstrap.min.css";  //引入樣式文件
ReactDOM.render(,document.getElementById("app"));      //輸出到頁面

import React from "react";

import LiuYanList from "./LiuYanList";
import LiuYanForm from "./LiuYanForm";

class LiuYanapp extends React.Component{
    constructor(props){
        super(props);
        this.ids=1;
        this.state={
                todos:[]
        };
        
        this.addItem=this.addItem.bind(this);
        this.deleteItem=this.deleteItem.bind(this);
    }
    deleteItem(id){
        let newtodos=this.state.todos.filter((item)=>{
            return !(item.id==id)
        });
          this.setState({
            todos:newtodos
        });

    }

    addItem(value){
       this.state.todos.unshift(
            {
                id:this.ids++,
                text:value,
                time:(new Date()).toLocaleString(),
                done:0
            }
       )
        this.setState({
            todos:this.state.todos
        });   
    }

    render(){
        return (
            

                

                

                

                

                

                    

                         
                            

                              
                    
                    
           
                    
                             
留言板
                             
                              
                    
                
 
            
         
        );
    }
}

export default LiuYanapp;

import React from "react";

class LiuYanForm extends React.Component{
   tijiao(event){
        event.preventDefault();
    }
    add(event){        
        if(event.type=="keyup"&&event.keyCode!=13){
            return false;
        }
        let txt=this.refs.txt.value;
        if(txt=="") return false;       
        this.props.addItem(txt);
        this.refs.txt.value="";
    }
    render(){
        return(
             

                

                    

                        
                    
                    

                      留言
                    
               
                
           
            
        );
    }
}
export default LiuYanForm;

import React from "react";

class LiuYanItem extends React.Component{
    delete(){
        this.props.deleteItem(this.props.data.id);
    }
    render(){

        let {text,time,done,id}=this.props.data;

        return (
           
               {text}
                   

                   

               {time}
               
               
                   刪除留言
                
           
        );
    }
}

export default LiuYanItem;

import React from "react";

import LiuYanItem from "./LiuYanItem";
class LiuYanList extends React.Component{
    render(){
        let todos=this.props.data;
       
        let todoItems=todos.map(item=>{
            return 
        });
        
        return (
            
                    {todoItems}
                

                

                    

                        
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        );
    }
}

export default LiuYanList;

這樣我們的留言功能就創(chuàng)建完了，大家輸入npm start就可以對項目進行啟動！想了解的同學們可以復制回去實驗一下！