diff --git a/Armv8.2-SM3和SM4.md b/Armv8.2-SM3和SM4.md
index c91e28f..b6cf96f 100644
--- a/Armv8.2-SM3和SM4.md
+++ b/Armv8.2-SM3和SM4.md
@@ -26,6 +26,7 @@ AESE指令相当于：
 1. ShiftRows(State)
 1. SubBytes(State)
 
+```
     go test -v -short -bench . -run=^$ ./...
     goos: linux
     goarch: arm64
@@ -38,7 +39,7 @@ AESE指令相当于：
     BenchmarkExpand-2    	 2059227	       582.7 ns/op
     PASS
     ok  	github.com/emmansun/gmsm/sm4	5.595s
-
+```
 ## Reference
 SM3和SM4 CPU指令实现，找不到相关CPU环境，mark先。
 1. [Summary of A64 cryptographic instructions](https://developer.arm.com/documentation/100076/0100/a64-instruction-set-reference/a64-cryptographic-algorithms/a64-cryptographic-instructions?lang=en)