The final goal of designing a lens is ____ A) to trap the opponent's lenses B) to focus light with lenses C) to handmake lenses at low cost D) to reflect light by means of curved surfaces
【简答题】下面的哪些程序片断可能导致错误。 (4.0分)A. String s = "Gone with the wind"; String t = " good "; String k = s + t; B. String s = "Gone with the wind"; String t; t = s[3] + "one"; C. String s = "Gone with the wind"; St...