TC is based on ANSI standard, and int is 2 bytes.

You can try. Printf ("%d ",sizeof(int))；) in TC; The result is 2;

But in VC, an int takes up 4 bytes, while in VC,

printf("%d "，sizeof(int))；

cout & lt& ltsizeof(int)； The results are all 4.

Different compilers have different regulations.

The same is true for float and double, which occupy different bytes in different compilers.