高中数学 全册课件1.2.2 条件语句精品课件 新人教A版必修3.ppt

1 2 2条件语句 练习 练习 a 条件语句 知识探究 一 条件语句 1 知识探究 一 条件语句 1 知识探究 一 条件语句 1 inputx inputx ifx 0then inputx ifx 0then x x inputx ifx 0then x x endif inputx ifx 0then x x endif printx end inputx ifx 0then x x endif printx 知识探究 二 条件语句 2 知识探究 二 条件语句 2 知识探究 二 条件语句 2 知识探究 二 条件语句 2 input x x input x x ifx 0then input x x ifx 0then printx input x x ifx 0then printx else input x x ifx 0then printx else print x input x x ifx 0then printx else print x endif end input x x ifx 0then printx else print x endif 理论迁移 理论迁移 ifd 0then ifd 0then p b 2 a ifd 0then p b 2 a q sqr d 2 a ifd 0then p b 2 a q sqr d 2 a ifd 0then ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p else ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p else print x1 x2 p q p q ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p else print x1 x2 p q p q endif ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p else print x1 x2 p q p q else endif ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p else print x1 x2 p q p q else print norealroot endif ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p else print x1 x2 p q p q endif else print norealroot endif end ifd 0then p b 2 a q sqr d 2 a ifd 0then print x1 x2 p else print x1 x2 p q p q endif else print norealroot endif 算法分析 算法分析 算法分析 算法分析 算法分析 算法分析 inputa b c inputa b c ifb athen inputa b c ifb athen t a inputa b c ifb athen t a a b inputa b c ifb athen t a a b b t inputa b c ifb athen t a a b b t endif inputa b c ifb athen t a a b b t endif ifc athen inputa b c ifb athen t a a b b t endif ifc athen t a inputa b c ifb athen t a a b b t endif ifc athen t a a c inputa b c ifb athen t a a b b t endif ifc athen t a a c c t inputa b c ifb athen t a a b b t endif ifc athen t a a c c t endif inputa b c ifb athen t a a b b t endif ifc athen t a a c c t endif ifc bthen inputa b c ifb athen t a a b b t endif ifc athen t a a c c t endif ifc bthen t b inputa b c ifb athen t a a b b t endif ifc athen t a a c c t endif ifc bthen t b b c inputa b c ifb athen t a a b b t endif ifc athen t a a c c t endif ifc bthen t b b c c t inputa b c ifb athen t a a b b t endif ifc athen t a a c c t endif ifc bthen t b b c c t endif inputa b c ifb athe