Google Go 编程语言.pdf

The Go Programming Language Rob Pike Oct 30, 2009 Monday, November 2, 2009 Go New Experimental Concurrent Garbage-collected Systems Language Monday, November 2, 2009 Hello, world package main import fmt func main() { fmt.Printf(Hello, \n); } Monday, November 2, 2009 Who Robert Griesemer, Ken Thompson, and Rob Pike started the project in late 2007. By mid 2008 the language was mostly designed and the implementation (compiler, run-time) starting to work. Ian Lance Taylor and Russ Cox joined in 2008. Lots of help from many others. Monday, November 2, 2009 Why Go fast! Make programming fun again. Monday, November 2, 2009 Our changing world No new major systems language in a decade. But much has changed: - sprawling libraries dependency chains - dominance of networking - client/server focus - massive clusters - the rise of multi-core CPUs Major systems languages were not designed with all these factors in mind. Monday, November 2, 2009 Construction speed It takes too long to build software. The tools are slow and are getting slower. Dependencies are uncontrolled. Machines have stopped getting faster. Yet software still grows and grows. If we stay as we are, before long so