SPL 中怎么理解 for 循环


[A,1,B,2,C,3] [1,2,3,4,5] [A,B,C,D,E]
for A1 =A2.() =A2
for B1 =A3.() =A3
for C1 =A4.() =A4
同样是 for 循环,为什么 A.() 中的值理论上不同