minglotus的专栏

Java中传入的数组为空和数组长度为0是两个不同的概念 public class Program { public static String Puzzle(String x) { if(x == null || x.length() == 0){ return new String(“”); } int len = x.length(), i;

MEANING: SOME compares a value to each value in a list or results from a query and evaluates to true if the result of an inner query contains at least one row. SOME must match at least one row in the