refactor

example/http/demo/main.go

@@ -4,10 +4,10 @@ import (
 	"flag"
 	"net/http"
 
-	"zero/core/httpx"
 	"zero/core/logx"
 	"zero/core/service"
 	"zero/ngin"
+	"zero/ngin/httpx"
 )
 
 var (

example/http/post/main.go

@@ -5,10 +5,10 @@ import (
 	"fmt"
 	"net/http"
 
-	"zero/core/httpx"
 	"zero/core/logx"
 	"zero/core/service"
 	"zero/ngin"
+	"zero/ngin/httpx"
 )
 
 var (

example/http/shedding/main.go

@@ -6,10 +6,10 @@ import (
 	"net/http"
 	"time"
 
-	"zero/core/httpx"
 	"zero/core/logx"
 	"zero/core/service"
 	"zero/ngin"
+	"zero/ngin/httpx"
 )
 
 var (

example/http/signature/server/server.go

@@ -5,10 +5,10 @@ import (
 	"io"
 	"net/http"
 
-	"zero/core/httpx"
 	"zero/core/logx"
 	"zero/core/service"
 	"zero/ngin"
+	"zero/ngin/httpx"
 )
 
 var keyPem = flag.String("prikey", "private.pem", "the private key file")