一个24点的游戏``急

12×3-(-12)×(-1)=24

2³×[1-(-2)]=8×3=24

12*(3-1)-12=24
2^[1-(-2)]*3=24（只想到这个，不知道可不可以。。。）

12*3-(-12*-1)=24
2的3次方*{1-(-2)}

3*12-(-1)*(-12)=24
1，-2，2，3 ?可能吗？

3*12+(-12*1)

1: 12 × 1 × 3 - 12
2: (12 × 1) × 3 - 12
3: (12 × 1 × 3) - 12
4: ((12 × 1) × 3) - 12
5: (12 × (1 × 3)) - 12
6: 12 × (1 × 3) - 12
7: 12 ÷ 1 × 3 - 12
8: (12 ÷ 1) × 3 - 12
9: (12 ÷ 1 × 3) - 12
10: ((12 ÷ 1) × 3) - 12
11: (12 ÷ (1 ÷ 3)) - 12
12: 12 ÷ (1 ÷ 3) - 12
13: 12 × 3 - 12 × 1
14: (12 × 3) - 12 × 1
15: (12 × 3 - 12) × 1
16: ((12 × 3) - 12) × 1
17: 12 × 3 -(12 × 1)
18: (12 × 3) - (12 × 1)
19: 12 × 3 - 12 ÷ 1
20: (12 × 3) - 12 ÷ 1
21: (12 × 3 - 12) ÷ 1
22: ((12 × 3) - 12) ÷ 1
23: 12 × 3 -(12 ÷ 1)
24: (12 × 3) - (12 ÷ 1)
25: 12 × 3 - 1 × 12
26: (12 × 3) - 1 × 12
27: 12 × 3 -(1 × 12)
28: (12 × 3) - (1