keil C编译出现很多这种警告怎么解决啊？？？function "Gpio_Set" declared implicitly

hy.rf

keil C编译出现很多这种警告怎么解决啊？？？function "Gpio_Set" declared implicitly [复制链接]

source\App_Rtc8025.c(32): warning:  #223-D: function "I2CWrite" declared implicitly
source\App_Rtc8025.c(46): warning:  #223-D: function "I2CRead" declared implicitly
compiling App_24lc256.c...
source\App_24lc256.c(34): warning:  #223-D: function "Gpio_Clr" declared implicitly
source\App_24lc256.c(37): warning:  #223-D: function "printf" declared implicitly
source\App_24lc256.c(40): warning:  #223-D: function "printf" declared implicitly
source\App_24lc256.c(40): warning:  #870-D: invalid multibyte character sequence
source\App_24lc256.c(40): warning:  #870-D: invalid multibyte character sequence
source\App_24lc256.c(41): warning:  #223-D: function "I2CWrite" declared implicitly
有很多让人看着很不爽，不知道怎么去掉这些警告！
期盼高手解答！！

suixincc

应该是没有包含相应的头文件导致的

fenglangxing

source\App_24lc256.c(40): warning:  #870-D: invalid multibyte character sequence
这条警告怎么关啊

tjhm

引用 1 楼 arnold9009 的回复:
应该是没有包含相应的头文件导致的

我也忘记了，不过不影响程序运行！

wellee

引用 2 楼 amwox 的回复:
source\App_24lc256.c(40): warning:? #870-D: invalid multibyte character sequence
这条警告怎么关啊

搜了搜，好像是有全角字符引起的，你查查看！！！