/*方法体/
public static String RC4(String aInput,String aKey) {
int[] iS = new int[256];
byte[] iK = new byte[256];
for (int i=0;i<256;i++)
iS[i]=i;
//int j = 1;
for (short i= 0;i<256;i++)
{
iK[i]=(byte)aKey.charAt((i % aKey.length()));
}
int j=0;
for (int i=0;i<255;i++)
{
j=(j+iS[i]+iK[i]) % 256;
int temp = iS[i];
iS[i]=iS[j];
iS[j]=temp;
}
int i=0;
j=0;
char[] iInputChar = aInput.toCharArray();
char[] iOutputChar = new char[iInputChar.length];
for(short x = 0;x<iInputChar.length;x++)
{
i = (i+1) % 256;
j = (j+iS[i]) % 256;
int temp = iS[i];
iS[i]=iS[j];
iS[j]=temp;
int t = (iS[i]+(iS[j] % 256)) % 256;
int iY = iS[t];
char iCY = (char)iY;
iOutputChar[x] =(char)( iInputChar[x] ^ iCY) ;
}
return new String(iOutputChar);
}