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引言二维码是利用某种特定的几何图形按照一定的规律在平面上分部的黑白相见的图形记录数据二维码信息的,在代码编制上巧妙地利用构成计算机内部逻辑基础的“0”“1”比特流的概念,使用若干个与二进制相对应的几何形体来表示文字数值信息,通过图形输入设备或光电扫描设备自动识读以实现信息自动处理。它具有条码技术的一些共性:每种码制有其独特的字符集,每个字符占有一定的宽度,具有一定的校验功能等。同时还具有对不同行的信息自动识
The introduction of two-dimensional code is the use of a particular geometry in accordance with certain laws in the plane of the black and white graphics of the two-dimensional code information, the use of code in the clever use of computer internal logic based on the “ 0 ”“ 1 ”concept of bit stream, the use of a number of binary corresponding geometry to represent the numerical value information, through the graphical input device or photoelectric scanning device automatically read in order to achieve automatic information processing. It has some common barcode technology: each code system has its own unique character set, each character occupies a certain width, with a certain verification function. At the same time also has a different line of information automatically recognize