如果证书存储在一个字符串中，您可以这样做:

If the certificates are stored in one single string you could do this:

start_flag = "-----BEGIN CERTIFICATE-----"
end_flag   = "-----END CERTIFICATE-----"
keys = []
for CERTIFICATE in CERTIFICATES.split( end_flag ):
    key = CERTIFICATE.lstrip( start_flag )
    keys.append( key )

print keys