57.C++处理转义字符

 #include <iostream>
 #include <string>
 #include <cstdlib>
 using namespace std;

 void main()
 {
     //string str("\"C:\\Program Files (x86)\\Tencent\\QQ\\Bin\\QQScLauncher.exe\"");
     //\n不会换行,换行只能在内部换行
     string str(R"("C:\Program Files(x86)\Tencent\QQ\Bin\QQScLauncher.exe")");
     system(str.c_str());
     cin.get();
 }