sudo dpkg --add-architecture i386
使用wine时要开启32支持
那如何关闭呢？
From https://wiki.debian.org/Multiarch/HOWTO:
To add an extra architecture (in Debian from dpkg 1.16.2 onwards):
dpkg --add-architecture <arch>e.g.
dpkg --add-architecture armhf
To remove an architecture
dpkg --remove-architecture <arch>dpkg architectures are stored in /var/lib/dpkg/arch.
在你所举的实例中，关闭32位支持所应当执行的命令为
sudo dpkg --remove-architecture i386
dpkg的手册页对于这两个选项有更加详细的解释：
–add-architecture architecture
Add architecture to the list of architectures for which packages can be installed without using –force-architecture (since dpkg 1.16.2). The architecture dpkg is built for (i.e. the output of –print-architecture) is always part of that list.
–remove-architecture architecture
Remove architecture from the list of architectures for which packages can be installed without using –force-architecture (since dpkg 1.16.2). If the architecture is currently in use in the database then the operation will be refused, except if –force-architecture is specified. The architecture dpkg is built for (i.e. the output of –print-architecture) can never be removed from that list.
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