序号 | 可达集合 | 先行集合 | 可达集合与先行集合的交集 | 抽取要素 |
层级 1 |
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α | β | γ | δ | ε | ζ | η | θ | ι | κ | λ | μ | ν | ξ | ο | π | ρ | σ | τ | φ |
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η |
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ι |
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μ |
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1 |
| 抽取了要素: ζ η ι μ ο
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层级 2 |
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α | β | γ | δ | ε | θ | κ | λ | ν | ξ | π | ρ | σ | τ | φ |
α |
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α | β | γ | δ | ε | θ | κ | λ | ν | ξ | π | ρ | σ | τ | φ |
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λ |
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1 |
| 抽取了要素: κ ξ
|
层级 3 |
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α | β | γ | δ | ε | θ | λ | ν | π | ρ | σ | τ | φ |
α |
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α | β | γ | δ | ε | θ | λ | ν | π | ρ | σ | τ | φ |
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|
|
|
|
|
|
|
|
γ |
|
|
1 |
|
|
|
|
|
|
|
|
|
|
δ |
|
|
|
1 |
|
1 |
|
|
|
|
|
|
|
ε |
|
|
|
|
1 |
|
|
|
|
|
|
|
|
θ |
|
|
|
1 |
|
1 |
|
|
|
|
|
|
|
λ |
|
|
|
|
|
|
1 |
|
|
|
|
|
|
ν |
|
|
|
|
|
|
|
1 |
|
|
|
|
|
π |
|
|
|
|
|
|
|
|
1 |
|
|
|
|
ρ |
|
|
|
|
|
|
|
|
|
1 |
|
|
|
σ |
|
|
|
|
|
|
|
|
|
|
1 |
|
|
τ |
|
|
|
|
|
|
|
|
|
|
|
1 |
|
φ |
|
|
|
|
|
|
|
|
|
|
|
|
1 |
| 抽取了要素: ν π ρ τ
|
层级 4 |
|
α | β | γ | δ | ε | θ | λ | σ | φ |
α |
1 |
|
|
|
|
|
|
|
|
β |
1 |
1 |
|
1 |
|
1 |
|
|
|
γ |
|
|
1 |
|
|
|
|
|
|
δ |
1 |
|
|
1 |
|
1 |
|
|
|
ε |
1 |
1 |
|
1 |
1 |
1 |
|
|
|
θ |
1 |
|
|
1 |
|
1 |
|
|
|
λ |
|
|
|
|
|
|
1 |
|
|
σ |
|
|
|
|
|
|
|
1 |
|
φ |
1 |
1 |
1 |
1 |
1 |
1 |
|
|
1 |
|
|
α | β | γ | δ | ε | θ | λ | σ | φ |
α |
1 |
1 |
|
1 |
1 |
1 |
|
|
1 |
β |
|
1 |
|
|
1 |
|
|
|
1 |
γ |
|
|
1 |
|
|
|
|
|
1 |
δ |
|
1 |
|
1 |
1 |
1 |
|
|
1 |
ε |
|
|
|
|
1 |
|
|
|
1 |
θ |
|
1 |
|
1 |
1 |
1 |
|
|
1 |
λ |
|
|
|
|
|
|
1 |
|
|
σ |
|
|
|
|
|
|
|
1 |
|
φ |
|
|
|
|
|
|
|
|
1 |
|
|
α |
β |
γ |
δ |
ε |
θ |
λ |
σ |
φ |
α |
1 |
|
|
|
|
|
|
|
|
β |
|
1 |
|
|
|
|
|
|
|
γ |
|
|
1 |
|
|
|
|
|
|
δ |
|
|
|
1 |
|
1 |
|
|
|
ε |
|
|
|
|
1 |
|
|
|
|
θ |
|
|
|
1 |
|
1 |
|
|
|
λ |
|
|
|
|
|
|
1 |
|
|
σ |
|
|
|
|
|
|
|
1 |
|
φ |
|
|
|
|
|
|
|
|
1 |
| 抽取了要素: λ σ φ
|
层级 5 |
|
α | β | γ | δ | ε | θ |
α |
1 |
|
|
|
|
|
β |
1 |
1 |
|
1 |
|
1 |
γ |
|
|
1 |
|
|
|
δ |
1 |
|
|
1 |
|
1 |
ε |
1 |
1 |
|
1 |
1 |
1 |
θ |
1 |
|
|
1 |
|
1 |
|
|
α | β | γ | δ | ε | θ |
α |
1 |
1 |
|
1 |
1 |
1 |
β |
|
1 |
|
|
1 |
|
γ |
|
|
1 |
|
|
|
δ |
|
1 |
|
1 |
1 |
1 |
ε |
|
|
|
|
1 |
|
θ |
|
1 |
|
1 |
1 |
1 |
|
|
α |
β |
γ |
δ |
ε |
θ |
α |
1 |
|
|
|
|
|
β |
|
1 |
|
|
|
|
γ |
|
|
1 |
|
|
|
δ |
|
|
|
1 |
|
1 |
ε |
|
|
|
|
1 |
|
θ |
|
|
|
1 |
|
1 |
| 抽取了要素: γ ε
|
层级 6 |
|
α | β | δ | θ |
α |
1 |
|
|
|
β |
1 |
1 |
1 |
1 |
δ |
1 |
|
1 |
1 |
θ |
1 |
|
1 |
1 |
|
|
α | β | δ | θ |
α |
1 |
1 |
1 |
1 |
β |
|
1 |
|
|
δ |
|
1 |
1 |
1 |
θ |
|
1 |
1 |
1 |
|
|
α |
β |
δ |
θ |
α |
1 |
|
|
|
β |
|
1 |
|
|
δ |
|
|
1 |
1 |
θ |
|
|
1 |
1 |
| 抽取了要素: β
|
层级 7 |
|
|
| 抽取了要素: δ θ
|
层级 8 |
|
|
| 抽取了要素: α
|