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LD             M8002                                           LD             M8002
SET          S0                                                   SET          S0
ZRST       S20   S30                                       ZRST       S20   S30
STL          S0                                                    STL          S0
LD            X0                                                     LD            X0  
SET         S20                                                   SET         S20
LD            X1                                                     LD            X1
SET         S30                                                   SET         S30
STL         S20                                                    STL         S20
OUT        Y0                                                      OUT        Y0
STL         S30                                                    STL         S30
OUT        Y1                                                       OUT        Y1
STL         S20                                                    STL         S20
STL         S30                                                    LD            X6
LD           X6                                                      OUT        S0          
OUT       S0                                                       STL        S30
                                                                           LD            X6
                                                                           OUT         S0                      各位師傅怎么前面的程序不行，當X6接通時不執行S0跳轉，后面的可以，
                                                            難道用了選擇性分支就不能用并行匯合嗎，大家幫我看看了    

選擇性分支，當某個分支條件滿足時一直往下運行。選擇性分支不能用并行匯合。