Keil uVision5点亮LED灯错误

LED1没有定义啊，不能直接用

有void LED1(参数);//声明
和void LED1(参数)//定义
{
……；
}
这两个吗？有的话再看看有没有
extern void LED1(参数);//引用其他.c文件中的函数

GPIO_RestBits没定义

谢谢，回复，是GPIO_ResetBits(GPIOC,GPIO_Pin_3 )写错了GPIO_RestBits(GPIOC,GPIO_Pin_3 )少了个e,更改后问题又出来了：..STM_led.axf: Error: L6200E: Symbol GPIO_ResetBits multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).

*** Using Compiler 'V5.06 update 1 (build 61)', folder: 'C:Program Files (x86)keilKeil_v5ARMARMCCBin'
Rebuild target 'Target 1'
assembling startup_stm32f10x_md.s...
compiling main.c...
led.h(34): warning:  #1-D: last line of file ends without a newline
                           
main.c: 1 warning, 0 errors
compiling stm32f10x_it.c...
compiling led.c...
led.h(34): warning:  #1-D: last line of file ends without a newline
                           
led.c: 1 warning, 0 errors
compiling stm32f10x_gpio.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 core_cm3.c...
compiling system_stm32f10x.c...
linking...
..STM_led.axf: Error: L6200E: Symbol GPIO_ResetBits multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_SetBits multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_Init multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_DeInit multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_AFIODeInit multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_StructInit multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_ReadInputDataBit multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_ReadInputData multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_ReadOutputDataBit multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_ReadOutputData multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_WriteBit multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_Write multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_PinLockConfig multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_EventOutputConfig multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_EventOutputCmd multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_PinRemapConfig multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_EXTILineConfig multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
..STM_led.axf: Error: L6200E: Symbol GPIO_ETH_MediaInterfaceConfig multiply defined (by stm32f10x_gpio_1.o and stm32f10x_gpio.o).
Not enough information to list image symbols.
Not enough information to list the image map.
Finished: 2 information, 0 warning and 18 error messages.
"..STM_led.axf" - 18 Error(s), 2 Warning(s).
Target not created.
Build Time Elapsed:  00:00:06

10多个错误，新手第一次弄smt32流水灯。

我没有学习STM32,正准备入手一块！