系统调用与库函数比较—以及一点历史知识。
他们几乎涵盖所有的库函数，包括例子。
They pretty much cover all the library functions, both include examples.
一个较好的编程语言，必然有较强的库函数。
A better programming language, is bound to have a strong library function.
这些“库函数”的作者可都是拿着全职薪水在干活的呀！
these library writers are paid to work on these things full time!
具体地说，这里讨论连接、读、写和释放连接等数据库函数。
In particular, database functions such as connect, read, write, and release connection are covered here.
最后由内建的erl_eval:exprs库函数执行构建好的表达式。
The expression is finally executed with the built in erl_eval:exprs library function.
最后由内建的erl_eval:exprs库函数执行构建好的表达式。
The expression is finally executed with the built in erl_eval:exprs library function.
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