如何替换同一个字符串中的多个字符？

Question

我一般不太精通编程，所以请在这里放我一马。\n有没有更优雅的方法来解决替换字符串中多个字符的过程？

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strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(godiacritics.Normalize(strings.ToLower(articles[i].Name)), "-", "_"), " ", "_"), ",", "_"), ".", ""), "/", ""), "\xe2\x82\xac", ""), "%", ""), "12", "halb"), "14", "viertel")\n

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Answer 1

创建一个strings.Replacer包含所有可替换对的单个：

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r := strings.NewReplacer(\n    "-", "_",\n    " ", "_",\n    ",", "_",\n    ".", "",\n    "/", "",\n    "\xe2\x82\xac", "",\n    "%", "",\n    "12", "halb",\n    "14", "viertel",\n)\n

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并像这样使用它：

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s2 := r.Replace(godiacritics.Normalize(strings.ToLower(articles[i].Name)))\n

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strings.Replacer在一个步骤中执行所有替换（它迭代字符串一次）。它对于并发使用也是安全的，创建Replacer一次并在需要时/任何地方重复使用它。

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测试它的示例代码：

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s := "test- ,./\xe2\x82\xac%:12 14"\ns2 := strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(s, "-", "_"), " ", "_"), ",", "_"), ".", ""), "/", ""), "\xe2\x82\xac", ""), "%", ""), "12", "halb"), "14", "viertel")\nfmt.Println(s2)\n\nr := strings.NewReplacer(\n    "-", "_",\n    " ", "_",\n    ",", "_",\n    ".", "",\n    "/", "",\n    "\xe2\x82\xac", "",\n    "%", "",\n    "12", "halb",\n    "14", "viertel",\n)\n\ns3 := r.Replace(s)\nfmt.Println(s3)\n

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哪个输出（在Go Playground上尝试）：

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test___:halb_viertel\ntest___:halb_viertel\n

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