方法一:1.将数据文件的状态offline SQL> select file_name,tablespace_name from dba_data_files where file_name like '%user%'; FILE_NAME -------------------------------------------------------------------------------- TABLESPACE_NAME ------------------------------ /
// http://www.outofmemory.cn function ExpandEnvironment(const strValue: string): string; var chrResult: ..] of Char; wrdReturn: DWORD; begin wrdReturn := ExpandEnvironmentStrings(PChar(strValue), chrResult, ); then Result := strValue else begin Resul
内部类访问外部类的变量必须是final吗? 如下: package com.java.concurrent; class A { int i = 3; public void shout() { class B { public void shout1() { System.out.println(i); } } B b = new B(); b.shout1(); } public static void main(String[] args) { A a = new A(); a.shout