中文说明：本代码是实现lt码的编解码过程,码长K=1000,N=1000:50:2000,间隔为50，c=0.1,delta=0.7，显示结果为随着N值的增大，误码率降低，当N=1200时，译码失败率为10%，当N=1300时，译码失败率为0，所以随着N值的增大，译码失败率显著降低，在二元删除信道中表现十分良好，但是在高斯白噪声的信道环境下，误码率还是有所降低。
English Description：
This code is achieved lt yards of series decoding process, yards long K=1000,N=1000:50:2000, interval for 50,c=0.1,Delta=0.7, displayed results for with n value of increases, BER reduced, dang N=1200 Shi, decoding failed rate for 10%, dang N=1300 Shi, decoding failed rate for 0, so with n value of increases, decoding failed rate significantly reduced, in II Yuan delete channel in the performance is good, but in Gaussian white noise of channel environment Xia BER is also reduced.