问题4： 你有没有想到过这样的问题 C语言的编译程序用什么语言 来写？可以就用C语言写吗？
Source Program 解释 Interpreting R由y Interpreter Machine Language CPU it is usually easier to write a"quick-and-dirty,"but reasonably useful,interpreter, than it is to write a reasonable compiler; interpreter-drivenexecution yields a more traceable account of what is happening. especially when working interactively with the computer through a terminal with a display screen
解释 Interpreting
问题5： 从程序执行的角度来看， 编译与解释两种方式的 差别是什么？