refactor code
diff --git a/string_test.go b/string_test.go
index 0531740..37071fd 100644
--- a/string_test.go
+++ b/string_test.go
@@ -176,7 +176,6 @@
 	s0 := "emoji🤣"
 	s0 += ",max" + string(rune(0x10FFFF))
 
-	// todo 这里正确拿到hessian解码字节数组,但是构造string的时候,不是rune,emoji表情符号显示有点问题,修改assert???
 	testDecodeFramework(t, "customReplyStringEmoji", s0)
 	testJavaDecode(t, "customArgString_emoji", s0)
 }