头文件的问题

忘记的会忘记

点流水灯的那个 bsp_led.h中为啥这样写报错
#ifndef _BSP_LED_H_
#define _BSP_LED_H_
这样写就对呢？
#ifndef _LED_H_
#define _LED_H_

子车梨祎

报什么错？ 可能因为你其它文件已经使用了_BSP_LED_H_

忘记的会忘记

Build target 'Template'
compiling core_cm3.c...
compiling system_stm32f10x.c...
compiling misc.c...
compiling stm32f10x_adc.c...
compiling stm32f10x_bkp.c...
compiling stm32f10x_can.c...
compiling stm32f10x_cec.c...
compiling stm32f10x_crc.c...
compiling stm32f10x_dac.c...
compiling stm32f10x_dbgmcu.c...
compiling stm32f10x_dma.c...
compiling stm32f10x_exti.c...
compiling stm32f10x_flash.c...
compiling stm32f10x_fsmc.c...
compiling stm32f10x_gpio.c...
compiling stm32f10x_i2c.c...
compiling stm32f10x_iwdg.c...
compiling stm32f10x_pwr.c...
compiling stm32f10x_rcc.c...
compiling stm32f10x_rtc.c...
compiling stm32f10x_sdio.c...
compiling stm32f10x_spi.c...
compiling stm32f10x_tim.c...
compiling stm32f10x_usart.c...
compiling stm32f10x_wwdg.c...
compiling main.c...
..\..\User\main.c(17): error:  #5: cannot open source input file "bsp_led.h": No such file or directory
..\..\User\main.c:   #include "bsp_led.h"
..\..\User\main.c:                       ^
..\..\User\main.c: ..\..\User\main.c: 0 warnings, 1 error
compiling stm32f10x_it.c...
compiling bsp_led.c...
Target not created