string与int互转
#string到int
int,err:=strconv.Atoi(string)
#string到int64
int64, err := strconv.ParseInt(string, 10, 64)
#int到string
string:=strconv.Itoa(int)
#int64到string
string:=strconv.FormatInt(int64,10)
int64与[]byte互转
package main import (
"fmt"
"encoding/binary"
) func main() {
var i int64 = 2323
buf := Int64ToBytes(i)
fmt.Println(buf)
fmt.Println(BytesToInt64(buf))
} func Int64ToBytes(i int64) []byte {
var buf = make([]byte, 8)
binary.BigEndian.PutUint64(buf, uint64(i))
return buf
} func BytesToInt64(buf []byte) int64 {
return int64(binary.BigEndian.Uint64(buf))
}
int之间互转
#高效写法
package main import (
"unsafe"
) func main() {
// 设置一个 int64 的数据
int64_num := int64(6)
// 将 int64 转化为 int
int_num := *(*int)(unsafe.Pointer(&int64_num))
println(int_num)
}
直接转换也可以
例如:
int(int64)
int64(int)
string与[]byte互转
[]byte 转 string:
string([]byte)
string 转 []byte:
[]byte(string)