請問如何寫判斷數組內是否有某些"數"的判斷式?

sai90306

例如有一個數組
arry1 = [ "12", "34,"56", "78"]
另一個數組
arry2 = [ "12","34" ,"55", "66" ,"77"]

請問要如何寫一個能夠回報
arry1和arry2共有哪些數("12"和"34")的式子?

Wind2010

1. arry3 = arry1 & arry2
   
2. p arry3;exit

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