it also will copy bytes from a// string to a slice of bytes.) The source and destination may overlap. Copy// returns the number of elements copied, which will be the minimum of// len(src) and len(dst).funccopy(dst,src[]Type)int ...
go package main import ( "fmt" "reflect" "unsafe" ) // StringToBytes 通过强转换方式将 string 转换为 []byte func StringToBytes(s string) []byte { strHeader := (*reflect.StringHeader)(unsafe.Pointer(&s)) sliceHeader := (*reflect.SliceHeader)(unsafe.Pointer(&[]byte{})) sli...
"bytes" "encoding/gob" "fmt" ) type Info struct { Data int64 Data2 float64 Data3 string } func main() { info := &Info{Data: 80, Data2: 1.23, Data3: "abc"} buf := new(bytes.Buffer) //gob编码 enc := gob.NewEncoder(buf) if err := enc.Encode(info); err != nil { fmt...
Pointer(&b)) } func StringToBytes(s string) []byte { return *(*[]byte)(unsafe.Pointer( &struct { string Cap int }{s, len(s)}, )) } 输出 [97 98 99 100] 123 欢迎关注,学习不迷路! 发布于 2023-11-20 09:29・IP 属地江苏 内容所属专栏 Golang Go语言学习 订阅专栏 Go 语言...
原文链接:https://medium.com/@kevinbai/golang-%E4%B8%AD-string-%E4%B8%8E-byte-%E4%BA%92%E8%BD%AC%E4%BC%98%E5%8C%96-6651feb4e1f2 func StrToBytes(s string) []byte { x := (*[2]uintptr)(unsafe.Pointer(&s)) b := [3]uintptr{x[0], x[1], x[1]} return *(*[]...
golang中 String bytes rune 和 字符概念与应用 一、引入问题-为何打印s[0] 没有打印‘你’字符 packagemainimport"fmt"funcmain(){ s :="你"fmt.Println(s[0]) fmt.Printf("%s\n", s[0]) } output %!s(uint8=228) 首先需要知道go中编码格式和String 类型, Go内置的utf-8编码格式。
// []byte to string s2 := string(b) 强转换 通过unsafe 和 reflect 包,可以实现另外一种转换方式,我们将之称为强转换(也常常被人称作黑魔法)。 func String2Bytes(s string) []byte { sh := (*reflect.StringHeader)(unsafe.Pointer(&s)) ...
Golang中string与[]byte互转优化func StrToBytes(s string) []byte { x := (*[2]uintptr)(unsafe.Pointer(&s))b := [3]uintptr{x[0], x[1], x[1]} return *(*[]byte)(unsafe.Pointer(&b))} func BytesToStr(b []byte) string { return *(*string)(unsafe.Pointer(&b))} ...
2019-12-19 20:53 −struct和byte类型转换 import ( "fmt" "unsafe" ) type TestStructTobytes struct { data int64 } type SliceMock struct { addr uintptr len int cap int } ... 离地最远的星 0 2062 string::crbegin string::crend
bytes.Buffer是一个可写的缓冲区，支持高效的读写操作 var buf bytes.Buffer buf.WriteString("Hello ...