golang map排序
package main import ( "fmt" "sort" ) // 按map的key排序 func main() { params := make(map[string]interface{}) params["age"] = 23 params["name&quo...
Golang对map中的key进行排序
Golang对map中的key进行排序package main import ( "fmt" "sort" ) func main() {<br> //首先生成26个字母充当map中的key var a = 'a' var m map[string]int = make(map[string]i...
Golang map字典按照键排序和按照值排序
Golang map字典按照键排序和按照值排序字典按键排序package main import ( "fmt" "sort" ) func main() { m := map[string]int32{ "roy": 18, "kitty": 16...
go语言之map排序
go语言之map排序package main import ( "sort" "fmt" ) func main() { lockTest() } func lockTest() { var mp map[string]int mp = make(map[string]int) mp["1"]...
Golang Mysql 增删改查
Golang Mysql 增删改查 package main import ( "database/sql" "fmt" _ "github.com/go-sql-driver/mysql" ) func main() { //连接数据库 db, err := sql.Open(&qu...
Golang截取小数位数
Golang截取小数位数package main import ( "fmt" "strconv" ) func main() { var ff float64 ff = -1.355123156 ff = FloatRound(ff, 4) fmt.Println(ff) // 输出 -1.3551 }...
Golang 字符串分割,替换和截取
package main import ( "fmt" "strings" ) func main() { str := "赵,钱,孙,李,赵" //字符串分割, 使用字符分割 str1 := strings.Split(str, ",") fmt.Print...
go 迭代string数组 go for string[]
go 迭代string数组,直接拷贝去用即可package mainimport ( "fmt" ) func main() { subsCodes := []string{"aaaa", "vvvvv", "dddd", "eeeee", "gfgggg"} ...
goland 字符串去除空格和换行符
字符串去除空格和换行符package main import ( "fmt" "strings" ) func main() { str := "这里是 www\n.180it\n.com" fmt.Println("-------- 原字符串 ---...
Golang文本去重的代码优化问题
不好意思啊，第一次学Golang，写了个文本去重来练习，文本内容大概75万行，用go test看了下最后的去重时间，需要17’s，想知道还有哪里可以优化的。代码如下package distinct import ( "bufio" "fmt" "io" "os" "strings" ) //D...
