根據(jù)CMU（carnegie mellon university）的官網(wǎng)，他家CS的碩士項(xiàng)目：Most students will complete the program in three semesters.Students switching into Computer Science from another field may require an additional semester to fill in gaps in their undergraduate training. 所以如果你本科也是CS的，一般是3個(gè)學(xué)期念完，也就是1年半；如果本科不是CS而研究生轉(zhuǎn)到CS的話，一般是4個(gè)學(xué)期念完，也就是2年。