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expected constructor destructor

今天犯一个低级的C++语法错误,这里记录一下,以防下次再错, 错误如下: [color="#ff0000"]error: expected constructor, destructor, or type conversion before '.' token. 光从这个错误提示是看不出什么问题的,所以不知道原因会感觉很奇怪,C++中,全局域只能声明,初始化变量,不能对变量进行赋值,运算,调用函数等操作,谨记. 本文来自ChinaUnix博客,如果查看原文请点:http://blog.chinaunix.net/u3/104733/showa...

by djkpengjun - Linux文档专区 - 2009-11-27 16:52:37 阅读(1618) 回复(0)

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本帖最后由 fender0107401 于 2013-11-13 19:58 编辑 有个问题,我有点想不清楚。 那就是在 Perl 里面,我使用 Moose 的时候 derived_class 的 constructor 和 base_class constructor 之间的关系问题。 显然,在Perl这种高级语言里面,没有必要讨论copy constructor,所以此处不考虑copy constructor。 示例代码: base_class.pm[code] package base_class; use v5.14; use Moose; has 'foo' => (isa => 'Str', is => 'r...

package

by fender0107401 - Perl - 2013-11-13 14:53:07 阅读(3019) 回复(9)

// String.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include class String; class String { public: String(); String(const char*); String(const String&); ~String(); String& operator=(const String&); String& operator=(const char*); bool operator==(const String&); bool operator==(const char*); char operator[] (int); int size() {return...

by nickchang - C/C++ - 2006-04-29 13:10:25 阅读(1266) 回复(2)

本帖最后由 yshihyu 于 2014-03-19 00:02 编辑 [code]#ifndef _MSC_VER #undef NULL #define NULL 0 #endif #include #include #define BUFFER_SIZE 7 using namespace std; class ClassA { public: // 三种建构子 ClassA() { cout << "ClassA():" << endl; this->setAlloc(BUFFER_SIZE); this->setData(); } ClassA(const int n) { cout << "ClassA(c...

by yshihyu - C/C++ - 2014-03-19 11:35:21 阅读(1577) 回复(3)

[code]public class ItemType { public static final ItemType BOOK = new ItemType(0); public static final ItemType DVD = new ItemType(1); public static final ItemType SOFTWARE = new ItemType(2); private final int _typecode; private ItemType(int typecode) { _typecode = typecode; } public int getTypecode() { return _typecode; } } [/code]請問上面Java 代碼在類中就ne...

by yshihyu - C/C++ - 2012-02-08 08:37:03 阅读(1175) 回复(2)

点击boa.py后,cmd窗口一闪而过,就啥也没有了 1.安装python 2.7.3,设置好path 2.安装eclipse+pydev2.5.0 3.安装wxpython2.9-win32-2.9.4-py27 4.安装boa constructor-0.6.1

by piperfish - Python - 2012-11-14 16:27:03 阅读(1516) 回复(0)

constructor 里面 my $class = ref($proto) || $proto; 用这个ref 的作用是什么呢 到今天才明白 clone 是吧????

by nuclearxin - Perl - 2012-03-23 10:21:49 阅读(1698) 回复(6)

[code]#include ; using namespace std; class X { public: X() throw(); X(const X&) throw(); }; X::X() throw() { cout << "default constructor\n"; } X::X(const X&) throw() { cout << "copy constructor\n"; } X userCode(X b) throw() { X c = b; return c; } ...

by lc1999 - C/C++ - 2005-08-31 17:06:20 阅读(2115) 回复(4)

我有三个文件,class.config.jsp class.mysql.jsp test.jsp 访问总是报错,是个新手,没看出错误,那位朋友给看一下。 错误:/./include/class.mysql.jsp:5: '{' expected public class openDB(Config) class.config.jsp 代码如下: <%@page language="java"%> <%! class config_newwapdb { String host="wapdb"; String database="newwapdb"; String user="wap"; String passwd="wap949410";...

by linux68 - Java - 2011-01-14 10:06:19 阅读(1500) 回复(0)

cat $the_run_dir/cfgfile |while read LINE do echo $LINE >tmp.txt ui_function=`awk '{print $1}' tmp.txt` req_num=`awk '{print $2}' tmp.txt` echo $ui_function echo $req_num expr $req_num runing_num=`ps -ef|grep $ui_function|grep -v grep|wc -l` echo $runing_num ...

by 残风√木落 - Solaris - 2010-11-03 12:44:30 阅读(1303) 回复(0)

[code]#!/bin/bash # YUM_DIR="/etc/yum.repos.d" while : do clear cat << YUM =================================================================================== 1:CentOS-4X 2:CentOS-5X Q:Quit =================================================================================== YUM echo -n -e "\t\t\tPlease choose to install >" read ANS case $ANS in 1)X4="1" ;; 2)X5="2" ;; q|Q) break ;; *)...

by skyxue215 - Shell - 2010-04-10 22:13:38 阅读(2118) 回复(3)