每个值都等于相应元数据标记中的最高位字节的值。
Each value is equal to the value of the top byte in the corresponding metadata token.
big -endian意味着最高位字节存储在最低地址(按高位优先的顺序存储字)。
Big-endian means that the most significant byte has the lowest address (the word is stored big-end-first).
Big -endian是将高位字节存储在内存的低地址中，将低位字节存储在内存的高地址中。
Big-endian means that the most significant byte is stored at the lowest memory address and the least significant byte is stored at the highest memory address.
Little - endian是将低位字节存储在内存的低地址中，将高位字节存储在内存的高地址中。
Little-endian means that the least significant byte is stored at the lowest memory address and the most significant byte is stored at the highest memory address.
用程序修改PC高位字节使之与P1口组合实现对多位8段LED显示器的接口，并对P3端口组合实现对键盘矩阵的接口。
Use the procedure modification PC the high a word to makes it combined with P1 to realize to pick up 8 LEDS display and combines to realize to the port of P3 to connect to the keyboard matrix.
图像字节内的位填充次序：最高位首先填充还是最低位首先填充。
Fill order of the bit within the image bytes: most significant or least significant bit first.
图像字节内的位填充次序：最高位首先填充还是最低位首先填充。
Fill order of the bit within the image bytes: most significant or least significant bit first.
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