diff --git a/System/os_handler.c b/System/os_handler.c
index 17b7b1c3..aa3f4d32 100644
--- a/System/os_handler.c
+++ b/System/os_handler.c
@@ -15,13 +15,13 @@
 #include "ur_api.h"
 #include "ur_eapi.h"
 
-#if (defined ( __ICCARM__ ))
+#if defined ( __ICCARM__ )
 #define __IAR_WEAK __WEAK
 #else
 #define __IAR_WEAK
 #endif
 
-#if (defined ( __GNUC__ ))
+#if defined ( __GNUC__ )
 #define sKill_W(p) p
 #else
 #define sKill_W(p)
@@ -317,7 +317,7 @@ __IAR_WEAK void tCosyTick_Handler(void) MCUCFG_SYSTICK_ATTRIBUTE
 		#if (SYSCFG_SYSTICKTIME_COUNT == __ENABLED__)
 		if(true){
 			m_tick_t ticktemp_e = MCUCFG_SYSTICK_CURRVALUE;
-			  #if (MCUCFG_SYSTICK_COUNTMODE == 1 || MCUCFG_SYSTICK_COUNTMODE == 3)
+			#if   (MCUCFG_SYSTICK_COUNTMODE == 1 || MCUCFG_SYSTICK_COUNTMODE == 3)
 			if(ticktemp_e > ticktemp_s){
 				s_tick_count1 += ticktemp_e - ticktemp_s;
 			}
@@ -453,7 +453,7 @@ __IAR_WEAK bool _start_task_(void) MCUCFG_OSIT_ATTRIBUTE
 #if (SYSCFG_DEBUGGING == __ENABLED__)
 __IAR_WEAK void _cpu_usedtime_(m_tick_t ticktemp_0) MCUCFG_OSIT_ATTRIBUTE
 {
-	  #if (MCUCFG_SYSTICK_COUNTMODE == 1 || MCUCFG_SYSTICK_COUNTMODE == 3)
+	#if   (MCUCFG_SYSTICK_COUNTMODE == 1 || MCUCFG_SYSTICK_COUNTMODE == 3)
 	if(usedtime[0]){
 		s_task_current->usedtime[0] += usedtime[0] - 1;
 		usedtime[0] = 0;
@@ -486,7 +486,7 @@ __IAR_WEAK void _cpu_usedtime_(m_tick_t ticktemp_0) MCUCFG_OSIT_ATTRIBUTE
 #endif
 
 void pendsv_hook(void);
-#if (defined ( __CC_ARM ))
+#if defined ( __CC_ARM )
 register s_tasknode_tsp node_news __ASM("r3");
 #else
 __IAR_WEAK s_tasknode_tsp _SYS_MEM_ s_task_news/**/sZeroInstall;
@@ -525,7 +525,7 @@ __IAR_WEAK s_u8_t sPendSV_Handler(void) MCUCFG_OSIT_ATTRIBUTE
 		#if (SYSCFG_DEBUGGING == __ENABLED__)
 		m_tick_t _SYS_REG_ ticktemp_0 sKill_W(=0);
 		#endif
-		#if (!defined ( __CC_ARM ))
+		#if !defined ( __CC_ARM )
 		s_tasknode_tsp _SYS_REG_ node_news;
 		#endif
 		s_u8_t  _SYS_REG_ pri;
@@ -543,7 +543,7 @@ __IAR_WEAK s_u8_t sPendSV_Handler(void) MCUCFG_OSIT_ATTRIBUTE
 		
 		/* 选择就绪 */
 		if(true){
-			  #if (SYSCFG_TASKPRIORITY > 64)
+			#if   (SYSCFG_TASKPRIORITY > 64)
 			s_u8_t table_index = s_task_pickmap[s_task_table_index >> (SYSCFG_TASKPICKBITMAP & 1)];
 			s_u8_t bytes_index = s_task_pickmap[s_task_bytes_index[table_index] >> (SYSCFG_TASKPICKBITMAP & 1)];
 			s_u8_t   bit_index = s_task_pickmap[s_task_ready_table[table_index][bytes_index] >> (SYSCFG_TASKPICKBITMAP & 1)];
@@ -681,7 +681,7 @@ __IAR_WEAK s_u8_t sPendSV_Handler(void) MCUCFG_OSIT_ATTRIBUTE
 			}
 			#endif
 			mUserReg_RESc();
-			#if (!defined ( __CC_ARM ))
+			#if !defined ( __CC_ARM )
 			s_task_news = node_news;
 			#endif
 		}