使用antd ，按需加载， 样式不生效问题。

{//ES6、JSX处理
                    test:/(\.jsx|\.js)$/,
                    exclude: /node_modules/,
                    loader:'babel-loader',
                    query:
                        {
                            presets:["env", "react"],
                            plugins: [
                                [
                                    "import",
                                    {libraryName: "antd", style: 'css'}
                                ] //antd按需加载
                            ]
                        },
                },

                {//CSS处理
                    test: /\.css$/,
                    loader: "style-loader!css-loader?modules",
                    exclude: /node_modules/,
                },

                {//antd样式处理
                    test:/\.css$/,
                    exclude:/src/,
                    use:[
                        { loader: "style-loader",},
                        {
                            loader: "css-loader",
                            options:{
                                importLoaders:1
                            }
                        }
                    ]
                },

　　

{//ES6、JSX处理
test:/(\.jsx|\.js)$/,
    exclude: /node_modules/,
    loader:'babel-loader',
    query:
        {
            presets:["env", "react"],
            plugins: [
                [
                    "import",
                    {libraryName: "antd", style: 'css'}
                ] //antd按需加载
]
        },
},

{//CSS处理
test: /\.css$/,
    loader: "style-loader!css-loader?modules",
    exclude: /node_modules/,
},

{//antd样式处理
test:/\.css$/,
    exclude:/src/,
    use:[
        { loader: "style-loader",},
        {
            loader: "css-loader",
            options:{
                importLoaders:1
}
        }
    ]
},