Question

12．閱讀下圖所示的程序框圖，該框圖表示的函數(shù)是（　�。�

• A． y=$\left\{\begin{array}{l}{{x}^{2}，x≥0}\\{x+1，x＜0}\end{array}\right.$
• B． y=$\left\{\begin{array}{l}{\frac{1}{2}，x≥0}\\{{x}^{2}，x＜0}\end{array}\right.$
• C． y=$\left\{\begin{array}{l}{{x}^{2}，x＜0}\\{\frac{1}{2}，x=0}\\{x+1，x＞0}\end{array}\right.$
• D． y=$\left\{\begin{array}{l}{{x}^{2}，x＞0}\\{\frac{1}{2}，x=0}\\{x+1，x＜0}\end{array}\right.$

Answer 1

分析 根據(jù)條件結(jié)構(gòu)，表示出函數(shù)即可得到結(jié)論．

解答 解：由條件結(jié)構(gòu)得y=$\left\{\begin{array}{l}{{x}^{2}，x＜0}\\{\frac{1}{2}，x=0}\\{x+1，x＞0}\end{array}\right.$，
故選：C

點(diǎn)評 本題主要考查程序框圖的識別和判斷，根據(jù)條件結(jié)構(gòu)是解決本題的關(guān)鍵．