要了解底层原理, 不仅仅是概念,还要实现 memcpy memmove With memcpy, the destination cannot overlap the source at all. With memmove it can. This means that memmove might be very slightly slower than memcpy, as it cannot make the same assumptions. Click to expand! 1 2 3 4 5 6 7 8 9 10 11 12 13 14