更改app支付 package签名

go/gopath/src/github.com/chanxuehong/wechat/mch/sign.go

@@ -28,6 +28,7 @@ func Sign(parameters map[string]string, apiKey string, fn func() hash.Hash) stri
 		ks = append(ks, k)
 	}
 	sort.Strings(ks)
+	fmt.Printf("----ks %v", ks)
 
 	if fn == nil {
 		fn = md5.New
@@ -48,15 +49,12 @@ func Sign(parameters map[string]string, apiKey string, fn func() hash.Hash) stri
 		buf = append(buf, '&')
 		h.Write(buf)
 	}
-	fmt.Printf("----bufs1 %s", string(buf))
 
 	buf = buf[:0]
 
 	buf = append(buf, "key="...)
 	buf = append(buf, apiKey...)
 	h.Write(buf)
-
-	fmt.Printf("----bufs2 %s", string(buf))
 	signature := make([]byte, h.Size()*2)
 	hex.Encode(signature, h.Sum(nil))
 	return string(bytes.ToUpper(signature))