如何在Windows上使用std :: system使用空格运行可执行文件_java

概述如何在Windows上使用std :: system使用空格运行可执行文件

如何在不使用C ++ 11的情况下使用 std :: system在windows上运行带有空格的可执行文件？

我已经尝试了空间的path看似明显的引号，但在popup的控制台窗口运行命令我得到一个消息，指示完整的可执行文件path被拆分空间。例如，我已经尝试了以下内容：

#include <cstdlib> int main() { int no_spaces_forward_rc = std::system("c:/IronPython2.7/ipy -c "print 'no_spaces_forward'""); // no_spaces_forward_rc is 0 and "no_spaces_forward" is written to console window int spaces_forward_rc = std::system(""c:/Program files (x86)/IronPython 2.7/ipy" -c "print 'spaces_forward'""); // spaces_forward_rc is 1,and "'c:/Program' is not recognized as an internal or external command,operable program or batch file." is written to console window int no_spaces_backward_rc = std::system("c:\IronPython2.7\ipy -c "print 'no_spaces_backward'""); // no_spaces_backward_rc is 0 and "no_spaces_backward" is written to console window int spaces_backward_rc = std::system(""c:\Program files (x86)\IronPython 2.7\ipy" -c "print 'spaces_backward'""); // spaces_backward_rc is 1,and "'c:Program' is not recognized as an internal or external command,operable program or batch file." is written to console window int no_spaces_double_backward_rc = std::system("c:\\IronPython2.7\\ipy -c "print 'no_spaces_double_backward'""); // no_spaces_double_backward_rc is 0,and no_spaces_double_backward is written to console window int spaces_double_backward_rc = std::system(""c:\\Program files (x86)\\IronPython 2.7\\ipy" -c "print 'spaces_double_backward'""); // spaces_double_backward_rc is 1,and "'c:\Program' is not recognized as an internal or external command,operable program or batch file." is written to console window int spaces_double_double_backward_rc = std::system("\"c:\\Program files (x86)\\IronPython 2.7\\ipy\" -c "print 'spaces_double_double_backward'""); // spaces_dobule_double_backward_rc is 1,and "'"c:\Program files (x86)\IronPython 2.7\ipy"' is not recognized as an internal or external command,operable program or batch file." is written to console window return 0; }

我已经valIDation了直接在cmd提示符下运行"c:Program files (x86)IronPython 2.7ipy" -c "print 'spaces_backward'" ，我很确定我不只是有一个错字。这是驱使我坚果 – 任何帮助将不胜感激！

（我正在使用Visual Studio 2012和编译与子系统控制台，如果有帮助。）

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cmd.exe的语法有一个讨厌的转折。从cmd.exe /? ：

1. If all of the following conditions are met,then quote characters on the command line are preserved: - no /S switch - exactly two quote characters - no special characters between the two quote characters,where special is one of: &<>()@^| - there are one or more whitespace characters between the two quote characters - the string between the two quote characters is the name of an executable file.

为了使行为一致， std::system调用应该使用/S开关，并将该命令嵌入到引号中。可悲的是，事实并非如此。这意味着这将工作：

std::system(""c:\Program files (x86)\Adobe\Reader 10.0\Reader\AcroRd32.exe" h:\documents\documentation\misc\calendar 1999.pdf");

但是这个看似微不足道的变体不会：

std::system(""c:\Program files (x86)\Adobe\Reader 10.0\Reader\AcroRd32.exe" "h:\documents\documentation\misc\calendar 1999.pdf"");

要解决这个问题，整个命令，包括可执行文件的引用路径，必须用引号括起来：

std::system("""c:\Program files (x86)\Adobe\Reader 10.0\Reader\AcroRd32.exe" "h:\documents\documentation\misc\calendar 1999.pdf""");

在你的例子中，这将是

std::system("""c:\Program files (x86)\IronPython 2.7\ipy" -c "print 'spaces_backward'""");

确定这个代码使用原始字符串文字，实际上适用于我（VS2013 Express）：

std::string cmd = R"cmd("C:Program files (x86)doxygenbindoxygen.exe")cmd"; system(cmd.c_str());

对于不受支持的原始字符串文字，传统上转义的字符串文字应如下所示1：

std::string cmd = ""C:\Program files (x86)\doxygen\bin\doxygen.exe"";