小编wor*_*ace的帖子

我有一行BAT代码写成这样:

tasklist /FI "IMAGENAME eq WerFault.exe"|find /C "WerFault.exe" > temp.txt

它持续了好几天但突然我收到了这条错误消息:

error :Invalid argument/option: - 'eq'

在此错误消息之前和之后代码没有被更改,我无法弄清楚是什么问题.

这里我在delphi 7中运行了几行delphi代码:

    var
      ptr:Pointer ;
    begin
      ptr:=AllocMem(40);
      ptr:=Pchar('OneNationUnderGod');
      if ptr<>nil then
        FreeMem(ptr);
    end;

运行此代码片段时,FreeMem(ptr)将引发错误:'无效指针操作'.如果我删除这句话:

     ptr:=Pchar('OneNationUnderGod');

那么就不会发生错误.现在我有两个问题,

为什么会这样？2.如果我必须使用Pchar句子,我应该如何释放先前分配的内存？

非常感谢您的帮助!

我在visual studio 2010中使用下面的代码得到了这个"map/set iterator not incrementable"运行时错误,我自己无法弄清楚..它是一个依赖于平台的问题吗？下面列出了详细的整个代码部分.请帮帮我,谢谢!

#include <vector>
#include <map>
#include <string>
#include <iostream>
using namespace std;
void printHighChangeables(const map<string,vector<string>>& , int );
map<string,vector<string>> computeAdjacentWords(const vector<string>& );

int main()
{

    string v1[16]={"wine","dine","fine","line","nine","pine","vine","kine","wind","wing",
        "wins","hoot","loot","soot","root","boot"};
    const vector<string> words (&v1[0], &v1[15]);

    map<string,vector<string>> adjWords = computeAdjacentWords(words);
    printHighChangeables(adjWords,3);
}

void printHighChangeables(const map<string,vector<string>>& adjWords, int minWords=3)
{
    map<string,vector<string>>::const_iterator itr;
    for(itr = adjWords.begin(); itr != adjWords.end(); itr++)
    {
        const pair<string,vector<string>>& entry = *itr;
        const vector<string> & words = entry.second;
        if(words.size() >= minWords)
        {
            cout<<entry.first<<"("<<words.size()<<"):";
            for (int i …