北京邮电大学出版的ns教程--<ns与网络模拟>，讲的还可以。附带书中源码，可以测试用，第二章第二个例子好像有问题。-Beijing University of Posts and Telecommunications published in ns tutorial- <ns与网络模拟> , Speaking also. The book comes with source code, you can test, the second chapter the second example seems to have problems.