提醒：在这里要首先明白取模方向是什么意思。下面列举下取模放向及实例

横向扫描

与上图“我”字对应这种取模后取值为 00000100 10000000 00001110 10100000.。。。以此类推

但是发送给硬件需要倒叙即为 00100000 00000001 01110000 00000101.。。依次类推

纵向扫描的一种

只要注意扫描方式跟0,1阵的关系就很容易理解。这种扫描即为 00000100 00100100.。。按照0,1阵方向取值

同样需要倒叙

下面引入下面这种扫描发送的代码，因为项目用到的是这种，其他种都可以按此思路进行编写

- (void)sendText:(NSString *)str{

FILE* fphzk = NULL;

int offset;

unsigned char buffer[32];

unsigned char key[8] = { 0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01 };

unsigned char word[3]; // 改成你的转码后的汉字编码//

//文件路径 NSString *path = [[NSBundle mainBundle] pathForResource:@"HZK16" ofType:@""];

fphzk = fopen(path.UTF8String, "rb");

if(fphzk == NULL){

fprintf(stderr, "error hzk16\n");

return;

}

//循环解码 --》因为可能是多个汉字

NSMutableString *sendStr = [NSMutableString string];//

NSMutableString *twoSendStr = [NSMutableString string];

for (int i=0; i<str.length; i++) {

NSString *endStr = [str substringWithRange:NSMakeRange(i, 1)];

Byte *bytes = [self convertStringToGBKStr:endStr]; //汉字ascii编码

word[0] = bytes[0];

word[1] = bytes[1];

offset = (94*(unsigned int)(word[0]-0xa0-1)+(word[1]-0xa0-1))*32;

fseek(fphzk, offset, SEEK_SET);

fread(buffer, 1, 32, fphzk);

NSMutableArray<NSArray *> *ary = [NSMutableArray array];

for(int k=0; k<16; k++){

NSMutableArray<NSString *> *str = [NSMutableArray array];

for(int j=0; j<2; j++){

for(int i=0; i<8; i++){

int flag = buffer[k*2+j]&key[i];

printf("%s", flag?"1":"0");

[str addObject:flag?@"1":@"0"];

}

}

printf("\n");

[ary addObject:str];

}

//开始处理取模方式 --》在这里进行扫描以及取模的计算

NSMutableString *overStr = [NSMutableString string];

for (int i = 0; i < 16; i ++) {

NSMutableString *newStr = [NSMutableString string];

for (int j = 0; j < 8; j ++) {

NSArray *strArr = ary[7-j];

[newStr appendFormat:@"%@",strArr[i]];

}

[overStr appendFormat:@"%@",[self getHexByBinary:newStr]];

}

for (int i = 0; i < 16; i ++) {

NSMutableString *newStr = [NSMutableString string];

for (int j = 0; j < 8; j ++) {

NSArray *strArr = ary[15-j];

[newStr appendFormat:@"%@",strArr[i]];

}

[overStr appendFormat:@"%@",[self getHexByBinary:newStr]];

}

NSLog(@"最终输出的自处穿%@",overStr);

[sendStr appendString:overStr];

}

fclose(fphzk);

fphzk = NULL;

//在这里得到的sendStr即为按该中方式取模后的十六进制字符串

}