Java递归求和1+2+3+...+n public class Sum { public static int count(int n) { if (n 1) { return count(n - 1) + n; } else { return n; } } public static void main(String[] args) { S
clipped()函数介绍 Clips the view to its bounding rectangular frame. 将View裁剪成矩形 By default, a views bounding frame is used only for layout, so any content that extend