.netcore文件上传Api接口,和正常的webForm提交类似,只是用postman测试接口时,记得给form表单命名,否则获取上传文件数量一直为0 后端代码 using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Threading.Tasks; using Microsoft.AspNetCore.Http; using Microsoft.AspNe
string weclome=""; byte[] data = new byte[1024]; //字符串转byte数组 data = Encoding.ASCII.GetBytes(welcome); //byte[]数组转ASCII字符串 weclome=Encoding.ASCII.GetString(data, 0, data.length)
关于byte[]数组转十六进制字符串: public static String getHexString(byte[] b) throws Exception { String result = ""; for (int i=0; i < b.length; i++) { result += Integer.toString( ( b[i] & 0xff ) + 0x100, 16).substring( 1 ); } return result; } public s
procedure Hex2Png(str: string; out png: TPngObject); var stream: TMemoryStream; begin if not Assigned(png) then png := TPngObject.Create; stream := TMemoryStream.Create; stream.SetSize(Length(str) ); HexToBin(PChar(str), stream.Memory, stream.Size);