#define MAKEULONGLONG(a,b) ((ULONGLONG)(((ULONG)((ULONGLONG)(a) & 0xffffffff)) | ((ULONGLONG)((ULONG)((ULONGLONG)(b) & 0xffffffff))) << 32))#define MAKEULONGLONG(a,b) ((ULONGLONG)((
阅读背景：
整数合并和拆分
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