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Introduction to System.DirectoryServices.Protocols (S.DS.P)介绍系统目录服务协议类库 Establishing an LDAP Connection（建立一个LDAP连接）Request and Response Classes（请求响应类）A fundamental part of inte

String java.lang.String.trim()先来个例子：public static void main(String arg[]){ String a = " Hello World! "; String b = "Hello World!"; System.out.println("a--" + a + "--"); System.out.p