/* 不含校验位的EAN8，EAN13编码 */
public static int getEANCheckSUM(String EAN8orEAN13) {
	if(EAN8orEAN13.length() != 12) {
		EAN8orEAN13 = "00000" + EAN8orEAN13; //如果是EAN8条码，自动在前面补足5个0凑成EAN13来计算
	}
	if(EAN8orEAN13.length() != 12) {
		return 0;
	}
 
	int c1 = 0;
	int c2 = 0;
	for(int i = 0; i<EAN8orEAN13.length(); i++) {
		int c = EAN8orEAN13.charAt(EAN8orEAN13.length() - i - 1) - '0';
		if(i % 2 == 0)
			c1+=c;
		else
			c2+=c;
	}
	int cc = 10 - (c1 * 3 + c2)%10;
	if(cc==10)
		return 0;
	else
		return cc;
}
 
public static int getUPCACheckSUM(String UPCA) {
	if(UPCA.length() != 11) {
		return 0;
	}
 
	int c1 = 0;
	int c2 = 0;
	for(int i = 0; i<UPCA.length(); i++) {
		int c = UPCA.charAt(UPCA.length() - i - 1) - '0';
		if(i % 2 == 0)
			c1+=c;
		else
			c2+=c;
	}
	int cc = 10 - (c1 * 3 + c2)%10;
	if(cc==10)
		return 0;
	else
		return cc;
}