摘要：搭建项目有三种安装的方式，想了解的登录官网查看，今天介绍的一个自动安装的不需要怎么配置环境，自动生成的方式，类似于并实现一个小案例，留言功能官网的安装教程安装依次安装最终启动自后会出现一个页面大家可以去试试下边我们配置一

React有三种安装的方式，想了解的登录React官网查看，今天介绍的一个自动安装的不需要怎么配置环境，自动生成的方式，类似于vue-cli！并实现一个小案例，留言功能！

官网的安装教程！

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

cd my-app
npm start

最终启动自后会出现一个Welcome React页面,
大家可以去试试.

下边我们配置一下项目结构

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" }
  ]

我们加以改造

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

我们的bootstap是事先安装完成之后，把他移动到css项目目录下的，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";  //引入样式文件
ReactDOM.render(,document.getElementById("app"));      //输出到页面

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}
               
               
                   删除留言
                
           
        );
    }
}

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}
                

                

                    

                        
留言
                       
                    
                
                
              
            
        );
    }
}

export default LiuYanList;

这样我们的留言功能就创建完了，大家输入npm start就可以对项目进行启动！想了解的同学们可以复制回去实验一下！