输入命令:yum install gcc 提示: Loaded plugins: fastestmirror, langpacksExisting lock /var/run/yum.pid: another copy is running as pid 3535.Another app is currently holding the yum lock; waiting for it to exit... The other application is: PackageKit Memory…
-I(i的大写)include头文件非标准库中存在的也不是在当前文件夹下的,需要将地址用-i(大写)包含例:-I /home/src/-L用到的函数或操作非标准库下的,需要将库存在的地址用-L包含,库文件一般为.a或.so文件-l用在-L之后,后加库名称,-l库名(.a文件名) 一般在提示:'函数名' was not declared in this scope 时,是缺少以上一种或多种条件…