<p>你可以这样做</p>
<pre><code>Lis=['-----BEGIN RSA PRIVATE KEY-----\n', 'MIIEogIBAAKCAQEArLwCLYoy3F29Ror8+k2qWajpz+bSU8oTEe9UiWE0tH2Pq9fY\n', 'JpaSzmFingQe694xr16eK7OiI4b0YfxoQ9MRpYePHbc2yMQO68nU1q8hXRKgtY3I\n', 'HyO+pvS8jgsT9d1qaCaL2jx5SD9WbsgUADVyE+0Y/BKG38R19aca6QDLnpNHEETz\n', 'CogIZEra2X2Qku1DUcCPC+QH1/VfgSrY1nqxkJiqwx7jMcvTR8ygg5KDWCnXwVtM\n', 'k37LqU+4dqpnZ7d3krtzTu2CThIU+kslwFWG6310zOx6nEoHuYjRbbaGs4vi/4P0\n', 'NXwOTCbDyhI9tWIfkFH28OxhJPgOD9yPUcHejQIDAQABAoIBAErt/4/brDZ1n16T\n', 'eivmNuhP4qUh/skEFoOoKyaw+Rj2grVLm2MZ3DMUgaAEL5mnuCvXwos4kDQTHb3H\n', 'rT8Gt1fz1vxP9r7edY6I7f/21mU2aGp5R39ilRh9f7GqUo1L8BWf6vjPVNknSIoj\n', '1rFEfejw5+6o5sL4ySa3x2+dvbZafBNvDMGnfhU8bn4TXtWMhrmP05Xv5W9UdKH2\n', 'VjaOd4MngPadfBG1Q5MG8rMHh+N5uGBQdbg4JbnIAG94thzETlmylTb93UWOZuDr\n', 'KEhJ+UErodUAWT7TO+TdUG9QE8cObM/4efSSrx0SRpIgIY5VFz4OPEgbkzgTef1b\n', 'CF2cSg0CgYEA4RSeCPgtNt73z+szeFvRC7/nh0wStIMVyXM9trZNF2pES6+SXj3N\n', 'ds6fi77PjindivM1MpTWux2i8SVZlLC0HULY7Lv8Ymnkvcl2JKjsAIOT2/QGCzKC\n', 'Aum0euZxMnV4fA32H6iupMIt//ErzPtkwQiQGWI6pqWFDYpvgdZq5+cCgYEAxHaK\n', 'ZOard/XquTdEK5FILS1iXxub8z9REOwfSfkprzThnvulWUJ33JVSF/vJ0fi/3r9I\n', 'gkiEC6pkntYeViDA9WvWLkaf7yKTLpW2p+4WIoW6i+bLBaiBTAM6PBD++RpQx9d0\n', 'i5Lt0I6dYKw9FEmDSOiCsXB5olT1OJ05yAVzZ2sCgYAGiSG5ovM1J65MdEjvUsM0\n', 'MyNW82eLpE7KpbUCDDMa3fQTuopmgCbqLz/EwAqo1yBeu4cs69N8ZXToyavbPHJO\n', 'czV3UlIWzXpd5G6wy9LmhOuTNHfEdXf++6hI9U4OKAkSmRkvfCduE1FgoDEkZ5xa\n', 'WpRMmGSZmC7P4NgyDfbWuwKBgAUd/U7Rf0fZnOqEGP91gkbC9tv5UR+N16O0MsBv\n', 'f/lzTCki7tSbWZniPcgoI8KXUxAPNWlHUEEpiANnGlUt9zitPV/pMQM+iEzfU2me\n', 'Vu9BQnGgaktUb0G2l862tp1wZQg/gWadRhp3jHvXIKQlogjFHZpXjqN+yQBXgAjI\n', 's4/PAoGAaLJkwQjfcJiBsG2x/eQNbubvSNlZpLlfiS+3QRcDQI6MICBMCtQ5pHEQ\n', 'XcjR2Tp1bjnzoUEZWHNiiA/jC7ZZq05OkUnOiHRa9Oj38zsCzlnXKA1bu4wmGbg8\n', 'CtnXrELOu5QRg2eStWqJsQ4kyUioH6UYebFooZa77au/4NNmLgw=\n', '-----END RSA PRIVATE KEY-----']
strip_n=x=[i.strip() for i in Lis]
ouput_string= ''.join(strip_n)
</code></pre>
<p>希望这有帮助</p>