趋势科技实习--3个tool的实现

来源：互联网发布：淘宝兴业银行进不去编辑：程序博客网时间：2024/06/06 06:22

三个tool的效果展示：

Cpu100.exe（中间的是CPU显示）

AllocMemory.exe（这里是在windows下，mac系统下的效果还不是很明显，我继续完善）

AllocMemory.exe所占内存一直在增加

NewFile.exe

输入NewFile c 1024

会生成文件c，size为1KB

附上代码：

cpu100.cpp#include<stdio.h>int main(){while (1){}}AllocMemory.cpp#include <stdlib.h>#include <stdio.h>size_t A_MEGABYTE;int main(){char *some_memory = NULL;int i = 0;while (i<20){scanf("%ld", &A_MEGABYTE);size_t size_to_allocate;size_to_allocate = A_MEGABYTE;some_memory = (char*)malloc(size_to_allocate);//printf("%s\n",&some_memory);i++;}system("pause");return 0;} NewFile.cpp// NewFile.cpp : 定义控制台应用程序的入口点。//#include <stdio.h>#include <fstream>#include <iostream>#include <string>#include <stdlib.h>using namespace std;/*long long GetFreeSpaceSize(){long long nFreeSize = 0;ULARGE_INTEGER FreeBytesAvailable;ULARGE_INTEGER TotalNumberOfBytes;ULARGE_INTEGER TotalNumberOfFreeBytes;char szPath[MAX_PATH] = {0};GetModuleFileName(GetModuleHandle(NULL), szPath, MAX_PATH);char* p = strstr(szPath,":\\");*(p+2)='\0';GetDiskFreeSpaceEx(szPath,&FreeBytesAvailable,&TotalNumberOfBytes,&TotalNumberOfFreeBytes);nFreeSize = TotalNumberOfFreeBytes.HighPart;nFreeSize = nFreeSize<<(4*8)+TotalNumberOfFreeBytes.LowPart;cout<<szPath<<" , "<<nFreeSize<<endl;return nFreeSize;}*/bool NewFile(string strFileName, long long nFileSize){cout << "FileName:" << strFileName << " , FileSize:" << nFileSize << "B" << endl;//windows下可以使用GetFreeSpaceSize得到最大的剩余空间//long long nFreeSize = GetFreeSpaceSize();long long nFreeSize = 102400;if (nFileSize>nFreeSize){cout << "Error : nFileSize>nFreeSize" << endl;return 0;}ofstream outfile(strFileName.c_str());if (!outfile){cout << "can not open!" << endl;exit(0);}char ch = 'A';for (long long i = 0; i<nFileSize; i++){outfile << ch;}outfile.close();return true;}void Usage(){cout << "Usage : NewFile.exe filename filesize(B)" << endl;}int main(int argc, char* argv[]){Usage();NewFile(argv[1], atoi(argv[2]));//NewFile("a",10);return 0;}

0 0