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用電腦(程式員)計算IP位址

dword ip = 3408138412

輸入ip和255“相與”:

3408138412 and 255  =172;

輸入ip右移8位,再和255“相與”:

3408138412 rsh 8 and 255 = 16;

輸入ip右移16位,再和255“相與”:

3408138412 rsh 16 and 255 = 36;

輸入ip右移24位,再和255“相與”:

3408138412 rsh 24 and 255 = 203;

 ip1&0xff, (ip1>>8)&0xff,(ip1>>16)&0xff,(ip1>>24)&0xff 

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