试编程输入xxx，输出对应的yyy。 y={x2(x<0)−2x+10(0≤x<10)x−5(x≥10)y = \begin{cases} x^2 & (x < 0) \\ -2x + 10 & (0 \leq x < 10) \\ x - 5 & (x \geq 10) \end{cases}y=⎩⎨⎧x2−2x+10x−5(x<0)(0≤x<10)(x≥10)
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