场景:
1. 有时候需要构造命令行字符串传递給函数调用,比如CreateProcess,如果参数是动态的,那么就得使用类似std::vector<string>添加单个参数,之后拼接为一个string.
wx有给这类处理类,就是wxCmdLineParser ,它既能拼接为字符串,又可以把字符串分解为一个参数数组。
console.cpp
#include "wx/wxprec.h" #ifndef WX_PRECOMP #include "wx/wx.h" #endif #include "wx/cmdline.h" #include "wx/app.h" #include <assert.h> #include <iostream> #include <stdio.h> using namespace std; void TestParseCmdLine() { cout << "TestParseCmdLine" << endl; wxString cmd("gcc -c -o test.exe test.cpp"); //1.解析字符串 wxCmdLineParser parser; //parser.SetCmdLine(0,(char**)NULL); wxArrayString arr = parser.ConvertStringToArgs(cmd); for(int i = 0; i < arr.size(); ++i) { cout << arr[i] << endl; } //2.生成字符串 parser.AddParam(wxT("gcc")); parser.AddParam(wxT("-c")); parser.AddParam(wxT("-o")); parser.AddParam(wxT("test.exe")); parser.AddParam(wxT("test.cpp")); //parser.Reset(); //parser.Parse(); cout << "parser.GetParamCount(): " << parser.GetParamCount() << endl; for(int i = 0; i < parser.GetParamCount(); ++i) { cout << parser.GetParam(i) << endl; } cout << "argv: " << wxTheApp->GetAppName() << endl; wxString str = parser.GetUsageString(); wxString appName = wxTheApp->GetAppName(); cout << "parser: " << str.Mid(str.Find(wxTheApp->GetAppName())+appName.Length()+1) << endl; } int main(int argc,char* argv[]) { wxInitialize(); wxEntryStart(argc,argv); wxInitAllImageHandlers(); TestParseCmdLine(); wxEntryCleanup(); wxUninitialize(); return 0; }
输出:
TestParseCmdLine gcc -c -o test.exe test.cpp parser.GetParamCount(): 0 argv: test_wxCmdLineParser parser: gcc -c -o test.exe test.cpp
时间: 2024-10-23 15:43:08