为什么我复位后自动进入中断了？

/**

  ******************************************************************************

  * [url=home.php?mod=space&uid=288409]@file[/url]    EXTI/EXTI_demo/main.c

  * [url=home.php?mod=space&uid=187600]@author[/url]  MCU SD

  * [url=home.php?mod=space&uid=895143]@version[/url] V1.0

  * [url=home.php?mod=space&uid=212281]@date[/url]    26-DEC-2014

  * [url=home.php?mod=space&uid=247401]@brief[/url]   Main program body..

  ******************************************************************************

  */



/* Includes ------------------------------------------------------------------*/

#include "gd32f10x.h"



/* Private variables ---------------------------------------------------------*/

GPIO_InitPara GPIO_InitStructure;

EXTI_InitPara EXTI_InitStructure;

NVIC_InitPara NVIC_InitStructure;



/* Private function prototypes -----------------------------------------------*/

void EXTI0_Config(void);

void EXTI14_Config(void);



/* Private functions ---------------------------------------------------------*/

/**

  * @brief  Main program.

  * @param  None

  * @retval None

  */

int main(void)

{

    /* Enable GPIOC clock */

    RCC_APB2PeriphClock_Enable(RCC_APB2PERIPH_GPIOC, ENABLE);

    

    /* Configure the LED2 and LED3 GPIO */

    GPIO_InitStructure.GPIO_Pin = GPIO_PIN_0 | GPIO_PIN_2;

    GPIO_InitStructure.GPIO_Mode = GPIO_MODE_OUT_PP;

    GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;

    GPIO_Init(GPIOC, &GPIO_InitStructure);

    

    /* Turn on LED2 and LED3 */

    GPIO_SetBits(GPIOC, GPIO_PIN_0);

    GPIO_SetBits(GPIOC, GPIO_PIN_2);

    

    /* Configure the EXTI line0 and EXTI line14 */

    EXTI_DeInit(&EXTI_InitStructure);

    EXTI0_Config();

    EXTI14_Config();

    

    EXTI_SWINT_Enable(EXTI_LINE0);

    

    while(1)

    {

    }                                    

}



/**

  * @brief  Configure the EXTI line0.

  * @param  None

  * @retval None

  */

void EXTI0_Config(void)

{

    /* Enable GPIOC and AFIO clock */

    RCC_APB2PeriphClock_Enable(RCC_APB2PERIPH_GPIOA |

                               RCC_APB2PERIPH_AF, ENABLE);



    /* Configure PA0 pin */

    GPIO_InitStructure.GPIO_Pin = GPIO_PIN_0;

    GPIO_InitStructure.GPIO_Mode = GPIO_MODE_IN_FLOATING;

    GPIO_Init(GPIOA, &GPIO_InitStructure);

    

    /* Connect EXTI Line0 to PA0 pin */

    GPIO_EXTILineConfig(GPIO_PORT_SOURCE_GPIOA, GPIO_PINSOURCE0);



    /* Configure EXTI Line0 and its interrupt to the lowest priority*/

    EXTI_InitStructure.EXTI_LINE = EXTI_LINE0;

    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;

    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;

    EXTI_InitStructure.EXTI_LINEEnable = ENABLE;

    EXTI_Init(&EXTI_InitStructure);

    

    NVIC_InitStructure.NVIC_IRQ = EXTI0_IRQn;

    NVIC_InitStructure.NVIC_IRQPreemptPriority = 0x0F;

    NVIC_InitStructure.NVIC_IRQSubPriority = 0x0F;

    NVIC_InitStructure.NVIC_IRQEnable = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

}



/**

  * @brief  Configure the EXTI line14.

  * @param  None

  * @retval None

  */

void EXTI14_Config(void)

{

    /* Enable GPIOB and AFIO clock */

    RCC_APB2PeriphClock_Enable(RCC_APB2PERIPH_GPIOB |

                               RCC_APB2PERIPH_AF, ENABLE);

   

    /* Configure PB14 pin */

    GPIO_InitStructure.GPIO_Pin = GPIO_PIN_14;

    GPIO_InitStructure.GPIO_Mode = GPIO_MODE_IN_FLOATING;

    GPIO_Init(GPIOB, &GPIO_InitStructure);



    /* Connect EXTI Line14 to PB14 pin */

    GPIO_EXTILineConfig(GPIO_PORT_SOURCE_GPIOB, GPIO_PINSOURCE14);



    /* Configure EXTI Line14 and its interrupt to the lowest priority*/

    EXTI_InitStructure.EXTI_LINE = EXTI_LINE14;

    EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;

    EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;

    EXTI_InitStructure.EXTI_LINEEnable = ENABLE;

    EXTI_Init(&EXTI_InitStructure);

    

    NVIC_InitStructure.NVIC_IRQ = EXTI15_10_IRQn;

    NVIC_InitStructure.NVIC_IRQPreemptPriority = 0x0F;

    NVIC_InitStructure.NVIC_IRQSubPriority = 0x0F;

    NVIC_InitStructure.NVIC_IRQEnable = ENABLE;

    NVIC_Init(&NVIC_InitStructure);

}



/******************* (C) COPYRIGHT 2014 GIGADEVICE *****END OF FILE****/