一切都运行正常，但现在 libstdc++ 似乎坏了。所以我尝试重新安装它。例如：
sudo apt-get remove stdc++
sudo apt-get autoclean
sudo apt-get -f install
sudo apt-get -u dist-upgrade
没用。我所拥有的：
$ sudo apt-get install stdc++
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libsfstdc++6-dbg-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++5-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-pic-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.8-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.4-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'xstdcmap' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-arm64-dcv1' for regex 'stdc+'
Note, selecting 'libsfstdc++6-4.7-dev-armhf-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-pic-arm64-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-4.8-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.5-dbg' for regex 'stdc+'
Note, selecting 'libx32stdc++-4.8-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-arm64-dcv1' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.3-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-pic-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dev-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.2-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.4-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-dev-armel-dcv1' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.0-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.3-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.6-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.1-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-pic-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-doc' for regex 'stdc+'
Note, selecting 'libstdc++5-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-pic' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++-pic-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++5-3.3-dbg' for regex 'stdc+'
Note, selecting 'libx32stdc++6-dbg' for regex 'stdc+'
Note, selecting 'lib64stdc++-4.8-dev-powerpc-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.5-dbg' for regex 'stdc+'
Note, selecting 'libstdc++-dev-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++-dev-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++-dev-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-4.0-dbg' for regex 'stdc+'
Note, selecting 'libhfstdc++6-dbg-armel-dcv1' for regex 'stdc+'
Note, selecting 'libhfstdc++6-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-dbg' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.2-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6-dbg' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-pic-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++5-3.3-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.5-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.5-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.1-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.0-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-dbg-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.7-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++-pic-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-4.5-doc' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.8-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-dev-armhf-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.0-dbg' for regex 'stdc+'
Note, selecting 'libstdc++-dev-arm64-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++-4.8-dev' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.6-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.0-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-dev-arm64-dcv1' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.1-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.1-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.1-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++5-3.3-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dbg' for regex 'stdc+'
Note, selecting 'libhfstdc++6-4.7-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++5-3.3-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'pd-libstdcpp' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.0-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-pic-armhf-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.6-dbg' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.2-dbg' for regex 'stdc+'
Note, selecting 'libstdc++5-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++5-dbg' for regex 'stdc+'
Note, selecting 'libstdc++3.0-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-pic-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.7-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.0-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-doc' for regex 'stdc+'
Note, selecting 'libstdc++-dev-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libhfstdc++6-4.7-dev-armel-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.1-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dev-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.5-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.1-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.7-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.2-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.0-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++-pic-arm64-dcv1' for regex 'stdc+'
Note, selecting 'libsfstdc++6-4.8-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.3-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.2-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.8-dbg' for regex 'stdc+'
Note, selecting 'libstdc++5-3.3-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++5-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.8-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.7-dev' for regex 'stdc+'
Note, selecting 'lib64stdc++6-dbg' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.1-dbg' for regex 'stdc+'
Note, selecting 'libstdc++-dev-armel-dcv1' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.7-dbg' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.3-dbg' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.6-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.1-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-pic' for regex 'stdc+'
Note, selecting 'libstdc++-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.7-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-pic-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.2-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.3-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dev-powerpc-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.8-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++2.8-dev' for regex 'stdc+'
Note, selecting 'libstdc++5-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-4.5-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-dev-powerpc-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-pic' for regex 'stdc+'
Note, selecting 'libstdc++6-4.3-dbg' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-dev-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++2.10-dev' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.2-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-armel-dcv1' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.5-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.8-dbg' for regex 'stdc+'
Note, selecting 'libstdc++-dev-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-pic-armel-dcv1' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.4-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-armel-dcv1' for regex 'stdc+'
Note, selecting 'libhfstdc++6-armel-dcv1' for regex 'stdc+'
Note, selecting 'libsfstdc++6-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-4.2-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-4.0-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.3-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-pic-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++5-3.3-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.5-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6-4.3-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libx32stdc++6' for regex 'stdc+'
Note, selecting 'libstdc++-dev-arm64-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++2.9-dev' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-pic-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-doc' for regex 'stdc+'
Note, selecting 'libstdc++6-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-dbg' for regex 'stdc+'
Note, selecting 'libstdc++-4.8-dev-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++5' for regex 'stdc+'
Note, selecting 'libstdc++6' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.4-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'lib32stdc++6-4.3-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.0-dbg-arm64-cross' for regex 'stdc+'
Note, selecting 'libstdc++2.9-glibc2.1-dev' for regex 'stdc+'
Note, selecting 'libsfstdc++-4.8-dev-armhf-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.7-dev-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.1-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-4.5-dbg' for regex 'stdc+'
Note, selecting 'libstdc++6-4.7-dev-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.4-dev' for regex 'stdc+'
Note, selecting 'libsfstdc++6-4.7-dbg-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.2-dbg-armel-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.2-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.3-doc' for regex 'stdc+'
Note, selecting 'libsfstdc++6-armhf-cross' for regex 'stdc+'
Note, selecting 'libstdc++6-4.6-pic' for regex 'stdc+'
Note, selecting 'libstdc++6-dev-armhf-dcv1' for regex 'stdc+'
Note, selecting 'libstdc++6-dbg-powerpc-cross' for regex 'stdc+'
Note, selecting 'lib64stdc++6-powerpc-cross' instead of 'lib64stdc++6-powerpc-dcv1'
Note, selecting 'libhfstdc++6-4.7-dbg-armel-cross' instead of 'libhfstdc++6-dbg-armel-dcv1'
Note, selecting 'libhfstdc++6-armel-cross' instead of 'libhfstdc++6-armel-dcv1'
Note, selecting 'libsfstdc++6-armhf-cross' instead of 'libsfstdc++6-armhf-dcv1'
Note, selecting 'libstdc++-4.8-pic-arm64-cross' instead of 'libstdc++-pic-arm64-dcv1'
Note, selecting 'libstdc++-4.8-pic-armhf-cross' instead of 'libstdc++-pic-armhf-dcv1'
Note, selecting 'libstdc++-4.8-pic-powerpc-cross' instead of 'libstdc++-pic-powerpc-dcv1'
Note, selecting 'libstdc++6-4.7-dbg-armel-cross' instead of 'libstdc++6-dbg-armel-dcv1'
Note, selecting 'libstdc++6-4.7-dev-arm64-cross' instead of 'libstdc++6-dev-arm64-dcv1'
Note, selecting 'libstdc++6-4.7-dev-armel-cross' instead of 'libstdc++-dev-armel-cross'
Note, selecting 'libstdc++6-4.7-dev-armel-cross' instead of 'libstdc++-dev-armel-dcv1'
Note, selecting 'libstdc++6-4.7-dev-armel-cross' instead of 'libstdc++6-dev-armel-dcv1'
Note, selecting 'libstdc++6-4.7-dev-armhf-cross' instead of 'libstdc++6-dev-armhf-dcv1'
Note, selecting 'libstdc++6-4.7-dev-powerpc-cross' instead of 'libstdc++6-dev-powerpc-dcv1'
Note, selecting 'libstdc++6-4.7-pic-arm64-cross' instead of 'libstdc++6-pic-arm64-dcv1'
Note, selecting 'libstdc++6-4.7-pic-armel-cross' instead of 'libstdc++6-pic-armel-dcv1'
Note, selecting 'libstdc++6-4.7-pic-armhf-cross' instead of 'libstdc++6-pic-armhf-dcv1'
Note, selecting 'libstdc++6-4.7-pic-powerpc-cross' instead of 'libstdc++6-pic-powerpc-dcv1'
Note, selecting 'libstdc++6-arm64-cross' instead of 'libstdc++6-arm64-dcv1'
Note, selecting 'libstdc++6-armel-cross' instead of 'libstdc++6-armel-dcv1'
Note, selecting 'libstdc++6-armhf-cross' instead of 'libstdc++6-armhf-dcv1'
Note, selecting 'libstdc++6-powerpc-cross' instead of 'libstdc++6-powerpc-dcv1'
lib32stdc++-4.8-dev is already the newest version.
lib32stdc++-4.8-dev set to manually installed.
lib32stdc++6 is already the newest version.
lib32stdc++6 set to manually installed.
libstdc++-4.8-dev is already the newest version.
libstdc++-4.8-dev set to manually installed.
libstdc++6 is already the newest version.
libx32stdc++-4.8-dev is already the newest version.
libx32stdc++-4.8-dev set to manually installed.
libx32stdc++6 is already the newest version.
libx32stdc++6 set to manually installed.
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
lib32stdc++6-4.6-dbg : Conflicts: lib32stdc++6-4.4-dbg but 4.4.7-2ubuntu2 is to be installed
lib32stdc++6-4.7-dbg : Conflicts: lib32stdc++6-4.4-dbg but 4.4.7-2ubuntu2 is to be installed
Conflicts: lib32stdc++6-4.6-dbg but 4.6.4-3ubuntu1 is to be installed
lib32stdc++6-4.8-dbg : Conflicts: lib32stdc++6-4.4-dbg but 4.4.7-2ubuntu2 is to be installed
Conflicts: lib32stdc++6-4.6-dbg but 4.6.4-3ubuntu1 is to be installed
Conflicts: lib32stdc++6-4.7-dbg but 4.7.3-7ubuntu3 is to be installed
lib64stdc++6-4.8-dbg-powerpc-cross : Conflicts: lib64stdc++6-4.7-dbg-powerpc-cross but 4.7.3-1ubuntu1cross0.7 is to be installed
libstdc++-4.8-doc : Conflicts: libstdc++6-4.4-doc but 4.4.7-2ubuntu2 is to be installed
Conflicts: libstdc++6-4.6-doc but 4.6.4-3ubuntu1 is to be installed
Conflicts: libstdc++6-4.7-doc but 4.7.3-7ubuntu3 is to be installed
libstdc++6-4.6-dbg : Conflicts: libstdc++6-4.4-dbg but 4.4.7-2ubuntu2 is to be installed
libstdc++6-4.6-doc : Conflicts: libstdc++6-4.4-doc but 4.4.7-2ubuntu2 is to be installed
libstdc++6-4.7-dbg : Conflicts: libstdc++6-4.4-dbg but 4.4.7-2ubuntu2 is to be installed
Conflicts: libstdc++6-4.6-dbg but 4.6.4-3ubuntu1 is to be installed
libstdc++6-4.7-doc : Conflicts: libstdc++6-4.4-doc but 4.4.7-2ubuntu2 is to be installed
Conflicts: libstdc++6-4.6-doc but 4.6.4-3ubuntu1 is to be installed
libstdc++6-4.8-dbg : Conflicts: libstdc++6-4.4-dbg but 4.4.7-2ubuntu2 is to be installed
Conflicts: libstdc++6-4.6-dbg but 4.6.4-3ubuntu1 is to be installed
Conflicts: libstdc++6-4.7-dbg but 4.7.3-7ubuntu3 is to be installed
libstdc++6-4.8-dbg-arm64-cross : Conflicts: libstdc++6-4.7-dbg-arm64-cross but 4.7.3-1ubuntu1cross0.6 is to be installed
libstdc++6-4.8-dbg-armhf-cross : Conflicts: libstdc++6-4.7-dbg-armhf-cross but 4.7.3-7ubuntu3cross1.84 is to be installed
libstdc++6-4.8-dbg-powerpc-cross : Conflicts: libstdc++6-4.7-dbg-powerpc-cross but 4.7.3-1ubuntu1cross0.7 is to be installed
libx32stdc++6-4.8-dbg : Conflicts: libx32stdc++6-4.7-dbg but 4.7.3-7ubuntu3 is to be installed
E: Unable to correct problems, you have held broken packages.
leo@leo-SVS1513M1RB:~/atomic$ sudo apt-get -u dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
答案1
libstdc++ 不是二进制包名。由于未找到与名称 libstdc++ 匹配的包，apt-get 搜索与此正则表达式匹配的包，因此想要安装 4.4、4.6、4.7 和 4.8 以及相关的 -doc 和 -dbg 文件。相反，您可能正在寻找的包是 libstdc++6