用 iPhone 摄像头进行条码扫描识别-barcode scanner with iPhone Camera

iphone/ipad环境下产生条形码例子，网上很多例子都是产生二维码的，没用产生条形码的，此例子产生的条形码识别率非常高-iPhone/iPad environment under the bar code examples, many examples online are two-dimensional code, useless barcode, barcode recognition rate in this example is very high