补充：
加运算符前代码：BlockSize=512 NumberOfBlocks=60
Status = SD_ReadMultiBlocks(0x00, Buffer_MultiBlock_Rx, BlockSize, NumberOfBlocks);
加运算符控制地址之后：
for(i=30;i>0;i--)
{
printf("SD read\r\n");
Status = SD_ReadMultiBlocks(((i%10)*512), Buffer_MultiBlock_Rx, BlockSize, 2);
}
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