2017年6月9日
make
摘要： either '$(foo)' or '${foo}' is a valid reference to the variable foo. This special significance of '$' is why you must write '$$' to have the effect o 阅读全文
posted @ 2017-06-09 16:19 glob 阅读(223) 评论(0) 推荐(0) 编辑