PowerShell似乎删除了空的双层电子报，并可能需要逃避它们。使用而不是似乎有效。另外，我相信你应该使用 -P （密码短语），而不是 -N ）。所以最后的命令行应该是 ssh-keygen -t rsa -C$ MyEmailAddress-fid_rsa_test-P。

PowerShell seems to remove the empty double quotes and probably requires to escape them. Using """" instead of "" seems to work. Also, I believe one should use -P (passphrase) instead of -N (new passphrase in case you change it). So the final command line would be ssh-keygen -t rsa -C "$MyEmailAddress" -f "id_rsa_test" -P """".