Commit 3b48480

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commit solution 58

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`@@ -1,7 +1,7 @@`
`1`	`1`	`# [58. 最后一个单词的长度](https://leetcode-cn.com/problems/length-of-last-word)`
`2`	`2`
`3`	`3`	`### 题目描述`
`4`		`-<!-- 这里写题目描述 -->`
	`4`	`+`
`5`	`5`	`<p>给定一个仅包含大小写字母和空格 <code>' '</code> 的字符串 <code>s</code>,返回其最后一个单词的长度。如果字符串从左向右滚动显示,那么最后一个单词就是最后出现的单词。</p>`
`6`	`6`
`7`	`7`	`<p>如果不存在最后一个单词,请返回 0 。</p>`
`@@ -17,18 +17,21 @@`
`17`	`17`	`</pre>`
`18`	`18`
`19`	`19`
`20`		`-`
`21`	`20`	`### 解题思路`
`22`	`21`
`23`	`22`
`24`	`23`	`### 具体解法`
`25`	`24`
`26`		`-<!-- tabs:start -->`
`27`		`-`
`28`	`25`	`#### Golang`
`29`	`26`	```go
`30`		`-`
	`27`	`+func lengthOfLastWord(s string) int {`
	`28`	`+ if len(s) == 0 {`
	`29`	`+ return 0`
	`30`	`+ }`
	`31`	`+ s = strings.TrimSpace(s)`
	`32`	`+ sArr := strings.Split(s, " ")`
	`33`	`+ return len(sArr[len(sArr)-1])`
	`34`	`+}`
`31`	`35`	```
`32`	`36`
`33`		`-<!-- tabs:end -->`
`34`	`37`

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`@@ -0,0 +1,21 @@`
	`1`	`+package leetcode`
	`2`	`+`
	`3`	`+import "strings"`
	`4`	`+`
	`5`	`+/*`
	`6`	`+ * @lc app=leetcode.cn id=58 lang=golang`
	`7`	`+ *`
	`8`	`+ * [58] 最后一个单词的长度`
	`9`	`+ */`
	`10`	`+`
	`11`	`+// @lc code=start`
	`12`	`+func lengthOfLastWord(s string) int {`
	`13`	`+ if len(s) == 0 {`
	`14`	`+ return 0`
	`15`	`+ }`
	`16`	`+ s = strings.TrimSpace(s)`
	`17`	`+ sArr := strings.Split(s, " ")`
	`18`	`+ return len(sArr[len(sArr)-1])`
	`19`	`+}`
	`20`	`+`
	`21`	`+// @lc code=end`

Lines changed: 22 additions & 0 deletions

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`@@ -0,0 +1,22 @@`
	`1`	`+package leetcode`
	`2`	`+`
	`3`	`+import (`
	`4`	`+ "testing"`
	`5`	`+)`
	`6`	`+`
	`7`	`+func TestLengthOfLastWord(t *testing.T) {`
	`8`	`+ var ret int`
	`9`	`+ var s string`
	`10`	`+`
	`11`	`+ s = ""`
	`12`	`+ ret = 0`
	`13`	`+ if ret != lengthOfLastWord(s) {`
	`14`	`+ t.Fatalf("case fails %v\n", ret)`
	`15`	`+ }`
	`16`	`+`
	`17`	`+ s = "Hello World"`
	`18`	`+ ret = 5`
	`19`	`+ if ret != lengthOfLastWord(s) {`
	`20`	`+ t.Fatalf("case fails %v\n", ret)`
	`21`	`+ }`
	`22`	`+}`

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