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[1.22] = 1,[4.33]=4. y=[x] ͼԲԿ϶Dzġ
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Ҫһ̵��һԹʦ߽һҾưɣҪNaNNullһԹʦһҾưɣ
оԱʵ,ǡʾ֭ش𡹻...
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ѧC#бҪѧC?
structPoint{publicintx,y;publicPoint(intx,inty){this.x=x;this.y=y;}}3.3C#˿ӵField֮⣬ӵ...
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