diff --git a/zh-cn/device-dev/driver/driver-platform-regulator-des.md b/zh-cn/device-dev/driver/driver-platform-regulator-des.md
index 8e3b0ab1abc66bf05c000a591f9d17da771defe3..ad0aba61272767671e3b9b74022972a521beb6cb 100755
--- a/zh-cn/device-dev/driver/driver-platform-regulator-des.md
+++ b/zh-cn/device-dev/driver/driver-platform-regulator-des.md
@@ -243,7 +243,7 @@ int32_t ret;
 int32_t minUv = 0;        // 最小电压为0µV
 int32_t maxUv = 20000;    // 最大电压为20000µV
 
-/*设置Regulator电压输出电压范围*/
+/* 设置Regulator电压输出电压范围 */
 ret = RegulatorSetVoltage(handle, minUv, maxUv);
 if (ret != 0) {
 	/* 错误处理 */