With Base64, it will also enter the string or data encoding is ASCII code Chengquan printablestring.
同Base64一样,它也将输入的字符串或数据编码成全是ASCII码的可打印字符串。
2
IsPrintable , which returns TRUE if the given string contains no unprintable characters and returns FALSE if the given string does contain printable characters.
Line 4 encodes the string Double secret probation and USES Base64 to turn the encrypted string into printable characters that can easily be transmitted over E-mail, say.