This dumping of the entire standard namespace is acceptable as a short-term conversion technique or as a pedagogical aid, but its use in production systems is controversial.

• 这种一骨脑儿地包含所有的标准名字空间的做法只能作为一个短期的折衷技术，或者是做为教学来用，但是在实际系统的开发过程中，这样做是有争议的。