父節點
73e7ba9c1c
當前提交
b7178c3a2c
共有 2 個文件被更改,包括 33 次插入 和 0 次删除
@ -0,0 +1,32 @@ |
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package main |
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|
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import ( |
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"fmt" |
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"os" |
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) |
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|
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func printStrings(strings []string) { |
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for _, str := range strings { |
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fmt.Println(str) |
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} |
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} |
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|
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func main() { |
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if len(os.Args) == 1 { |
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printStrings(os.Environ()) |
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os.Exit(0) |
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} |
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|
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exitCode := 0 |
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envVars := []string{} |
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for _, key := range os.Args[1:] { |
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val, present := os.LookupEnv(key) |
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if present { |
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envVars = append(envVars, val) |
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} else { |
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exitCode = 1 |
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} |
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} |
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printStrings(envVars) |
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os.Exit(exitCode) |
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} |
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