3○6○4○2

不知楼主想要什么样的。
这4个数能不能调换位置。
现把所有的都给楼主，
楼主自己挑吧。
如果觉得好，
别忘了把我的选成最佳答案噢~~~~~
符合题目的共计216种：
1: 3 × 6 + 4 + 2
2: (3 × 6) + 4 + 2
3: (3 × 6 + 4) + 2
4: ((3 × 6) + 4) + 2
5: 3 × 6 +(4 + 2)
6: (3 × 6) + (4 + 2)
7: 3 × (6 + 4 - 2)
8: 3 × ((6 + 4) - 2)
9: 3 × (6 + (4 - 2))
10: 3 × (6 + 4 ÷ 2)
11: 3 × (6 + (4 ÷ 2))
12: (3 + 6 ÷ 2) × 4
13: (3 + (6 ÷ 2)) × 4
14: 3 × 6 + 2 + 4
15: (3 × 6) + 2 + 4
16: (3 × 6 + 2) + 4
17: ((3 × 6) + 2) + 4
18: 3 × 6 +(2 + 4)
19: (3 × 6) + (2 + 4)
20: 3 × (6 - 2 + 4)
21: 3 × ((6 - 2) + 4)
22: 3 × (6 - (2 - 4))
23: 3 × (6 × 2 - 4)
24: 3 × ((6 × 2) - 4)
25: 3 × (4 + 6 - 2)
26: 3 × ((4 + 6) - 2)
27: 3 × (4 + (6 - 2))
28: 3 × 4 + 6 × 2
29: (3 × 4) + 6 × 2
30: 3 × 4 +(6 × 2)
31: (3 × 4) + (6 × 2)
32: (3 × (4 + 2)) + 6
33: 3 × (4 + 2) + 6
34: 3 ×