英文:
What's the difference between Data Race and Condition in Go?
问题
你好，我是你的中文翻译助手。以下是你要翻译的内容：
嗨，我是Go语言的新手，目前还在学习中。我有一个关于数据竞争（data race）和竞态条件（race condition）之间的区别的问题，我对它们之间的区别有些困惑，有人可以告诉我这两种情况的真正区别以及示例答案吗？提前谢谢。
英文:
Hi i'm new in go and i currently still learning on it, there is a question about the difference between data race and race condition, i get a bit confused about the difference between it and can someone tell me what is the real different between those condition and the sample answer ? Thanks in advance
答案1
得分: 6
数据竞争是一种竞态条件。
数据竞争指的是在变量的并发读写操作中，变量被同时写入和读取。以下是一个数据竞争的示例：
x := 1
go func() { x = 2 }() // 此行对 x 的写入操作与下一行的读取操作同时执行...
fmt.Println(x) // 此行对 x 的读取操作与上一行的写入操作同时执行
该程序可能打印出 1、2，或以某种未指定的方式失败。
竞态条件是指由于非确定性的时间顺序，同时执行的代码产生不同的结果。以下是一个竞态条件的示例（不是数据竞争）：
ch := make(chan int, 1)
go func() { ch <- 1 }()
go func() { ch <- 2 }()
fmt.Println(<-ch)
两个 goroutine 竞争向通道发送值。该程序可能打印出 1 或 2。
英文:
A data race is a kind of race condition.
A data race is where a variable is written concurrently with other reads and writes of the variable. Here's a data race example:
x := 1
go func() { x = 2 }() // The write to x on this line executes ...
fmt.Println(x) // concurrently with the read on this line
The program can print 1, 2, or fail in some unspecified way.
A race condition is where concurrently executing code produces different results due to nondeterministic timing. Here's a race condition example (that is not a data race):
ch := make(chan int, 1)
go func() { ch <- 1 }()
go func() { ch <- 2 }()
fmt.Println(<-ch)
The goroutines race to send a value to the channel. The program can print 1 or 2.
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