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摘要： The standard libarary's strings package provides many useful string-related functions. Here are some examples to give you a sense of the packagepackag... 阅读全文

摘要： We often need our programs to perform operations on collection of data, like selecting all items that satisfy a given predicate or mapping all items t... 阅读全文

摘要： Defer is used to ensure that a function call is performed later in a program's execution, usually for purposes of cleanup. defer is often used wheree.... 阅读全文

摘要： Sometimes we'll want to sort a collection by something other than its natural order. For example, suppose we wanted to sort strings by their length in... 阅读全文

摘要： Go's sort package implements sorting for builtins and user-defined types. We'll look at sorting for builtins firstpackage mainimport ( "fmt" "so... 阅读全文

摘要： In the previous example we used explicit locking with mutexes to synchronize access to shared state across multiple goroutines. Another option is to u... 阅读全文

摘要： The primary mechanism for managing state in Go is communication over channels. We saw this for example with worker pools. There are a few other option... 阅读全文

摘要： In the previous example we saw how to manage simple counter state using atomic operations. For more complex state we can use a mutex to safetly access... 阅读全文

摘要： Rate limiting is an import mechanism for controlling resource utilzation and maintaining quality of service. Go elegantly supports rate with goroutine... 阅读全文

摘要： In this example we'll look at how to implement a worker pool using goroutines and channelspackage mainimport ( "fmt" "time")func worker(id int, ... 阅读全文