对两条心电信号波形数据存储转换成的text文本进行分析，找出这两条心电信号之间的最小DTW(动态规整)距离，用于在心电信号数据库中对样本信号进行匹配，找出相隔距离最小的模版信号，判断样本信号所属种类。-Of the two ECG waveform data stored in the text into text analysis to identify between the two ECG minimum DTW (dynamic warping) distance, for the EC