package main import ( "fmt" "unsafe" ) type TestStructTobytes struct { data int64 s int8 } type SliceMock struct { addr uintptr len int cap int } func main() { var testStruct = &TestStructTobytes{100, 'a'} Len := unsafe.Sizeof(*tes
BufferedImage转byte[] ByteArrayOutputStream out = new ByteArrayOutputStream(); ImageIO.write(imgBuff, "jpeg", out); byte[] bytes=out.toByteArray(); byte[]转BufferedImage ByteArrayInputStream in = new ByteArrayInputStream(bytes); BufferedImage srcB
InputStream is = request.getSession().getServletContext().getResourceAsStream("/WEB-INF/swdjzbg.png"); ByteArrayOutputStream baos = new ByteArrayOutputStream(); int len = 1024; byte tmp [] = new byte[len]; int i ; while((i=is.read(tmp, 0, len))&
string 不能直接和byte数组转换 string可以和byte的切片转换 1,string 转为[]byte var str string = "test" var data []byte = []byte(str) 2,byte转为string var data [10]byte byte[0] = 'T' byte[1] = 'E' var str string = string(data[:])
练习Go修改字符串的时候遇到这个问题:cannot use "c" (type string) as type byte in assignment,代码如下: package main import "fmt" func main() { s := "hello" c := []byte(s) // 将字符串转为[]byte类型 c[0] = 'c' // byte用''单引号包括字符 不然报错cannot use "c"