在操作数前面需要加＃字号来说明该操作数为立即数。否则会把该操作数误认为是一个地址，从而把立即数寻址变成直接地址寻址。 -In front of the operands to add# font size to illustrate the count for immediate action. Otherwise it will bring the operand mistaken for an address, which immediately for addressing into addressing directly address.