byteutils.java

来自「短信开发用于文件交换处理转发的类模块」· Java 代码 · 共 18 行

package com.pub.util;

public class ByteUtils {
    public static int getUINT4(byte[] ba, int start) {
        if (ba.length <= start + 3)
            return 0;
        int r = 0;
        r |= 0x00FF & ba[start];
        r = r << 8;
        r |= 0x00FF & ba[start + 1];
        r = r << 8;
        r |= 0x00FF & ba[start + 2];
        r = r << 8;
        r |= 0x00FF & ba[start + 3];
        return r;
    }
}