int num = 40000;
byte first = num/256;
byte second = num%256;
榪欐牱錛屽彧瑕?/span>first鎴?/span>second瓚呰繃127錛屽氨浼氭孩鍑猴紝浠庤屽悎騫惰搗鏉ョ殑int鏁板間細鍜屽師鏁板間笉涓鑷淬?/span>
int input2 = 130;
byte a3 = (byte) input2;
input2 = a3;
System.out.println(input2);
瀵逛簬涓婅堪浠ｇ爜錛岀粨鏋滀負-126錛岃屼笉鏄紑濮嬬殑130錛屼篃鏄孩鍑虹殑闂錛屾墍浠ヤ竴瀹氳娉ㄦ剰銆?/span>
瑙ｅ喅鏂規硶錛?/span>
絎竴縐嶏細杈冧負涓嶅交搴曪紝瀵逛簬姝ｆ暣鏁版潵璇達紝鍙互闄や互127錛屼粠鑰屼嬌byte涓嶄細婧㈠嚭
絎簩縐嶏細杞寲鐨勬椂鍊欐寜浣嶆搷浣滐紝浠庤屼笉浣跨敤寮哄埗杞寲鎹熷け綺懼害錛?/span>
// 灝?/span>iSource杞負闀垮害涓?/span>iArrayLen鐨?/span>byte鏁扮粍錛屽瓧鑺傛暟緇勭殑浣庝綅鏄暣鍨嬬殑浣庡瓧鑺備綅
public static byte[] toByteArray(int iSource, int iArrayLen)
{
byte[] bLocalArr = new byte[iArrayLen];
for ( int i = 0; (i < 4) && (i < iArrayLen); i++)
{
bLocalArr[i] = (byte)( iSource>>8*i & 0xFF );
}
return bLocalArr;
}
// 灝?/span>byte鏁扮粍bRefArr杞負涓涓暣鏁?/span>,瀛楄妭鏁扮粍鐨勪綆浣嶆槸鏁村瀷鐨勪綆瀛楄妭浣?/span>
public static int toInt(byte[] bRefArr)
{
int iOutcome = 0;
byte bLoop;
for ( int i =0; i<4 ; i++)
{
bLoop = bRefArr[i];
iOutcome+= (bLoop & 0xFF) << (8 * i);
}
return iOutcome;
}
]]>