diff --git a/3-5 GPIO_光敏传感器/User/main.c b/3-5 GPIO_光敏传感器/User/main.c
new file mode 100644
index 0000000..705420f
--- /dev/null
+++ b/3-5 GPIO_光敏传感器/User/main.c
@@ -0,0 +1,44 @@
+#include "stm32f10x.h" // Device header
+#include "Delay.h"
+#include "LED.h"
+#include "Key.h"
+#include "Buzzer.h"
+#include "Lightsensor.h"
+
+int main(void)
+{
+ Buzzer_Init();
+ LightSensor_Init();
+
+ while(1)
+ {
+ if( GPIOB_LightSensor_Get(GPIO_Pin_13) == 1 )
+ GPIOB_Buzzer(GPIO_Pin_12,high);
+ else
+ GPIOB_Buzzer(GPIO_Pin_12,low);
+
+
+ /*
+ GPIOA_LED(GPIO_Pin_1,low);
+ Delay_ms(500);
+ GPIOA_LED(GPIO_Pin_1,high);
+ GPIOA_LED(GPIO_Pin_2,low);
+ Delay_ms(500);
+ GPIOA_LED(GPIO_Pin_2,high);
+ */
+
+
+ //蜂鸣器工作
+ /*
+ GPIO_ResetBits(GPIOB,GPIO_Pin_12);//低电平响
+ Delay_ms(100);
+ GPIO_SetBits(GPIOB,GPIO_Pin_12);//高电平不响
+ Delay_ms(100);
+ GPIO_ResetBits(GPIOB,GPIO_Pin_12);
+ Delay_ms(100);
+ GPIO_SetBits(GPIOB,GPIO_Pin_12);
+ Delay_ms(700);
+ */
+ }
+}
+
diff --git a/3-5 GPIO_光敏传感器/User/stm32f10x_conf.h b/3-5 GPIO_光敏传感器/User/stm32f10x_conf.h
new file mode 100644
index 0000000..59549e3
--- /dev/null
+++ b/3-5 GPIO_光敏传感器/User/stm32f10x_conf.h
@@ -0,0 +1,77 @@
+/**
+ ******************************************************************************
+ * @file Project/STM32F10x_StdPeriph_Template/stm32f10x_conf.h
+ * @author MCD Application Team
+ * @version V3.5.0
+ * @date 08-April-2011
+ * @brief Library configuration file.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * © COPYRIGHT 2011 STMicroelectronics
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F10x_CONF_H
+#define __STM32F10x_CONF_H
+
+/* Includes ------------------------------------------------------------------*/
+/* Uncomment/Comment the line below to enable/disable peripheral header file inclusion */
+#include "stm32f10x_adc.h"
+#include "stm32f10x_bkp.h"
+#include "stm32f10x_can.h"
+#include "stm32f10x_cec.h"
+#include "stm32f10x_crc.h"
+#include "stm32f10x_dac.h"
+#include "stm32f10x_dbgmcu.h"
+#include "stm32f10x_dma.h"
+#include "stm32f10x_exti.h"
+#include "stm32f10x_flash.h"
+#include "stm32f10x_fsmc.h"
+#include "stm32f10x_gpio.h"
+#include "stm32f10x_i2c.h"
+#include "stm32f10x_iwdg.h"
+#include "stm32f10x_pwr.h"
+#include "stm32f10x_rcc.h"
+#include "stm32f10x_rtc.h"
+#include "stm32f10x_sdio.h"
+#include "stm32f10x_spi.h"
+#include "stm32f10x_tim.h"
+#include "stm32f10x_usart.h"
+#include "stm32f10x_wwdg.h"
+#include "misc.h" /* High level functions for NVIC and SysTick (add-on to CMSIS functions) */
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/* Uncomment the line below to expanse the "assert_param" macro in the
+ Standard Peripheral Library drivers code */
+/* #define USE_FULL_ASSERT 1 */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef USE_FULL_ASSERT
+
+/**
+ * @brief The assert_param macro is used for function's parameters check.
+ * @param expr: If expr is false, it calls assert_failed function which reports
+ * the name of the source file and the source line number of the call
+ * that failed. If expr is true, it returns no value.
+ * @retval None
+ */
+ #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+ void assert_failed(uint8_t* file, uint32_t line);
+#else
+ #define assert_param(expr) ((void)0)
+#endif /* USE_FULL_ASSERT */
+
+#endif /* __STM32F10x_CONF_H */
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
diff --git a/3-5 GPIO_光敏传感器/User/stm32f10x_it.c b/3-5 GPIO_光敏传感器/User/stm32f10x_it.c
new file mode 100644
index 0000000..52823b8
--- /dev/null
+++ b/3-5 GPIO_光敏传感器/User/stm32f10x_it.c
@@ -0,0 +1,160 @@
+/**
+ ******************************************************************************
+ * @file Project/STM32F10x_StdPeriph_Template/stm32f10x_it.c
+ * @author MCD Application Team
+ * @version V3.5.0
+ * @date 08-April-2011
+ * @brief Main Interrupt Service Routines.
+ * This file provides template for all exceptions handler and
+ * peripherals interrupt service routine.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * © COPYRIGHT 2011 STMicroelectronics
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x_it.h"
+
+/** @addtogroup STM32F10x_StdPeriph_Template
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/******************************************************************************/
+/* Cortex-M3 Processor Exceptions Handlers */
+/******************************************************************************/
+
+/**
+ * @brief This function handles NMI exception.
+ * @param None
+ * @retval None
+ */
+void NMI_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles Hard Fault exception.
+ * @param None
+ * @retval None
+ */
+void HardFault_Handler(void)
+{
+ /* Go to infinite loop when Hard Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Memory Manage exception.
+ * @param None
+ * @retval None
+ */
+void MemManage_Handler(void)
+{
+ /* Go to infinite loop when Memory Manage exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Bus Fault exception.
+ * @param None
+ * @retval None
+ */
+void BusFault_Handler(void)
+{
+ /* Go to infinite loop when Bus Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles Usage Fault exception.
+ * @param None
+ * @retval None
+ */
+void UsageFault_Handler(void)
+{
+ /* Go to infinite loop when Usage Fault exception occurs */
+ while (1)
+ {
+ }
+}
+
+/**
+ * @brief This function handles SVCall exception.
+ * @param None
+ * @retval None
+ */
+void SVC_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles Debug Monitor exception.
+ * @param None
+ * @retval None
+ */
+void DebugMon_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles PendSVC exception.
+ * @param None
+ * @retval None
+ */
+void PendSV_Handler(void)
+{
+}
+
+/**
+ * @brief This function handles SysTick Handler.
+ * @param None
+ * @retval None
+ */
+void SysTick_Handler(void)
+{
+}
+
+/******************************************************************************/
+/* STM32F10x Peripherals Interrupt Handlers */
+/* Add here the Interrupt Handler for the used peripheral(s) (PPP), for the */
+/* available peripheral interrupt handler's name please refer to the startup */
+/* file (startup_stm32f10x_xx.s). */
+/******************************************************************************/
+
+/**
+ * @brief This function handles PPP interrupt request.
+ * @param None
+ * @retval None
+ */
+/*void PPP_IRQHandler(void)
+{
+}*/
+
+/**
+ * @}
+ */
+
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
diff --git a/3-5 GPIO_光敏传感器/User/stm32f10x_it.h b/3-5 GPIO_光敏传感器/User/stm32f10x_it.h
new file mode 100644
index 0000000..9935cf2
--- /dev/null
+++ b/3-5 GPIO_光敏传感器/User/stm32f10x_it.h
@@ -0,0 +1,54 @@
+/**
+ ******************************************************************************
+ * @file Project/STM32F10x_StdPeriph_Template/stm32f10x_it.h
+ * @author MCD Application Team
+ * @version V3.5.0
+ * @date 08-April-2011
+ * @brief This file contains the headers of the interrupt handlers.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * © COPYRIGHT 2011 STMicroelectronics
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F10x_IT_H
+#define __STM32F10x_IT_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x.h"
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+
+void NMI_Handler(void);
+void HardFault_Handler(void);
+void MemManage_Handler(void);
+void BusFault_Handler(void);
+void UsageFault_Handler(void);
+void SVC_Handler(void);
+void DebugMon_Handler(void);
+void PendSV_Handler(void);
+void SysTick_Handler(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F10x_IT_H */
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/