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Update 18.1.md (#585)

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len([]int(str)) 修改为 len([]rune(str))
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燕睿涛
2019-03-17 09:49:31 +08:00
committed by 无闻
parent 84a4014136
commit 872c18fa42
1 changed files with 2 additions and 2 deletions
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eBook/18.1.md
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@@ -34,7 +34,7 @@ for ix, ch := range str {
最快速：`utf8.RuneCountInString(str)`
`len([]int(str))`
`len([]rune(str))`
（5）如何连接字符串：