However,it did not provide necessary information about the time somewhere else.

VOA: special.2010.07.14

Because I know this program was saved by default into my current folder, my current directory, so dot slash means run the program called a.out that's right here in my current directory not in, like, a out my applications folder or somewhere else.

程序默认保存在,当前目录下的文件夹，/意味着运行这个名为“a，out“的文件,是我当前目录下的文件，而不是应用程序文件夹或其他别的地方的。

哈佛公开课 - 计算机科学课程节选

You just forget where the memory is that you asked for on the heap and it's not going to get cleaned up on the stack because malloc puts it somewhere else.

你忘了你在堆中申请的内存在哪里,它将会被栈清除,因为malloc把它放在别的地方。

哈佛公开课 - 计算机科学课程节选