同步作業

Question

我有兩個功能;

foo (A, B, C) 

    bar (D, E, F) 

我想要;

| --------- | 
foo   foo 
started finished 

      | ------- | 
      bar  bar 
      started finished 

         | ------ | 
         ^^^^^^^^^^ 
         concatenate two list namely C and F 

如何同步這兩個函數以便按順序工作？

你能給一個樣本示例嗎？

Answer 1

foo(A,B,C), bar(D,E,F), append(C,F,Result).