js文件,
app.get('/',function(req,res){
res.sendfile(_dirname + '/index.html');
});
node.js可以启动,但是我收到了这个错误,
ReferenceError:在next_layer(E:\ javaEEstudy \node)的Object.handle(E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express\app.js:12:15)中未定义路径.在Route.dispatch上的js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\router\route.js:103:13)(E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\router\route.js:107:5)在E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\router.index.js:195:24在Function.proto.process_params(E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\router\index.js:251 :12)在Layer.expressInit的下一个(E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\router\index.js:189:19)[作为句柄](E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\middleware\init.js:23:5)trim_prefix(E:\ javaEEstudy \node.js) \node.js的入 门经典\ socket\socket.io_express \node_modules\express\lib\router\index.js:226:17)在E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\router\index.js:198:9在Function.proto.process_params(E:\ javaEEstudy \node.js \node.js入门经典\ socket\socket.io_express \node_modules\express\lib\router\index. JS:251:12)
index.html和app.js在同一个文件上,express版本是4.x.