go 中,`rand.Intn` 是否是线程安全的 - V2EX
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go 中,`rand.Intn` 是否是线程安全的

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  •   qianxi0410
    qianxi0410 May 24, 2022 2733 views
    This topic created in 1448 days ago, the information mentioned may be changed or developed.
    4 replies    2022-05-25 10:26:45 +08:00
    quella
        1
    quella  
       May 24, 2022
    https://pkg.go.dev/math/rand 这里有明确的提到
    qianxi0410
        2
    qianxi0410  
    OP
       May 24, 2022
    @quella 没太懂哎,如果只用 Seed 在 init 的时候进行一次初始化,可以看成是线程安全的吧。
    qianxi0410
        3
    qianxi0410  
    OP
       May 24, 2022
    ok ,大概知道了,默认源安全,新建源则不。Seed 初始化也是初始化默认源。
    liaohongxing
        4
    liaohongxing  
    May 25, 2022
    rand 这个包都不是安全的随机,就算线程安全也没意义 ,就算并发也是拿到同样值,
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