可以，举个例子，三段式状态机中的第二段 就是将寄存器信号作为always语句的敏感信号！
reg [3:0] current_state ;
reg [3:0] next_state;
always @ (posedge clk or negedge rst_n)
if (!RSTn) current_state <= IDLE;
else current_state <= next_state;
always @ (current_state) //这里就是将寄存器信号作为always语句的敏感信号
begin
next_state = x;
case(current_state)
S1: if(...) next_state = S2;
....................
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