n | l | m | ms | |
① | 2 | 0 | +frac{1}{2} | |
② | 4 | +1 | -frac{1}{2} | |
③ | 5 | 0 | +frac{1}{2} | |
④ | 3 | 2 | +1 |
n | l | m | ms | |
① | ≥3的正整数，如3或4或5等 | 2 | 0 | +frac{1}{2} |
② | 4 | 3或2或1 | +1 | -frac{1}{2} |
③ | 5 | 0 | 0 | +frac{1}{2} |
④ | 3 | 2 | +1 | +frac{1}{2}或-frac{1}{2} |