Data URI Scheme. Data URI scheme is defined in RFC2397 to embed some small data directly into a Web page so that no longer has to be loaded from an external file. For example, the above string of characters, in fact, is a small picture, these
base64 simply, it translates some 8-bit data into standard ASCII characters, and we write the contents of the image file directly in the HTML file, and the benefit is that an HTTP request is saved Data URI Scheme. Data URI scheme is defined in
Base64 Module
Preface
Yesterday the team's sister came to ask questions about the POP3 protocol, so today a little bit about the format of the POP3 protocol and the poplib in Python. And the POP server back to the data in a part of the need to use
Data URI scheme.Data URI scheme is defined in RFC2397 to embed small Data into a webpage without loading it from an external file. For example, the string above is actually a small image. copy and paste these characters into the address bar of
Brief introductionFeatures: RFC 3548:base16, BASE32, Base64 data encoding. Converts the binary data to an ASCII sequence that is suitable for plaintext protocol transmission. Transformation8bits contains valid data for 6, 5, or 4bits for each byte,
Presumably everyone knows the Web page loading process, from the start of the request, to the loading page, start parsing and display the Web page, encountered the picture will send a request to the server, load the picture. If there is a lot of
Python uses the base64 module for binary data encoding.
Preface
Yesterday, my team asked me about the POP3 protocol. So today I have studied the POP3 protocol format and the poplib in Python. Some of the data transmitted back by the POP server needs
Base64 is one of the most common encoding methods for transmitting 8Bit bytes of code on the network, and you can view rfc2045~rfc2049, which has a detailed specification of MIME. BASE64 encoding can be used to pass longer identity information in an
Base64 Is based on 64 Printable characters to represent the representation of binary data. Because 26 = 64 , So every 6 It is a unit that corresponds to a printable character. Three bytes in total 24 Bit, corresponding 4 Items Base64 Unit, that is 3
BASE64 encoding algorithm of Android Data encryption preface:In front of the study summed up the usual development encountered in various data encryption methods, the end will be encrypted binary data Base64 encoding, play a two times the effect of
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