package main import ( "fmt" "strconv" "path" "strings"
) func main(){
k :="1,2,3," k = strings.TrimSuffix(k,",") //修剪后缀 "1,2,3" k = strings.TrimPrefix(k,"1,") // 修剪前缀 "2,3“ strArr := strings.Split(k, `,`) //分隔成数组 [2 3] fmt.Println(k,strArr,strings.Index(k,",")) //strings.Index 查找字符串首次出现的位置,不包含返回-1,包含返回首次出现的位置 m :="test_user" id :="4" sql :=fmt.Sprintf("DELETE from %s WHERE id IN (%s)",m,k) fmt.Println(strings.Index(k,","),strings.Index(id,","),sql) //DB.Exec(sql) //mysql执行原生sql num,_ :=strconv.Atoi(id)//字符串转整 numStr := strconv.Itoa(num)//整数转字符串 fmt.Println(num,numStr) k = "1,2,3,4,5,6,7,8,9,10,11,12" kNew := strings.Replace(k,",","|",5) //替换指定次数字符串 1|2|3|4|5|6,7,8,9,10,11,12 kNew = strings.ReplaceAll(k,",","|") //替换全部字符串 1|2|3|4|5|6|7|8|9|10|11|12 kNew =kNew+" this is test !" fmt.Println(strings.TrimSpace(kNew))
scopes := []string{"name1","name2","name3"} if in("name1",scopes) == true{ fmt.Println("存在") }else{ fmt.Println("不存在") } fmt.Println(getFileName("https://tx2.a.yximgs.com/uhead/AB/2018/12/25/15/BMjAxODEyMjUxNTA1MzBfMTAwMjIwMDQzN18xX2hkMjE0XzczMA==_s.jpg")) //BMjAxODEyMjUxNTA1MzBfMTAwMjIwMDQzN18xX2hkMjE0XzczMA== } /*遍历判断字符串在数组中存在*/ func in(target string, str_array []string) bool { for _, element := range str_array{ if target == element{ return true } } return false } /*提取url路径中想要的文件名*/ func getFileName(fullFilename string) string { var filename string filename = path.Base(fullFilename)/*文件名 xxx.html*/ filenameLen :=strings.Index(filename, "==") /*==出现在开始位置*/ filename =filename[:filenameLen+2]/*提取包含==之前的内容*/ return filename }
go字符串数组以及字符串处理集合
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转载自blog.csdn.net/lctmei/article/details/115004134
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