提取同级目录中文件夹名为"smali"的内容，该文件夹为apk经apktool反编译的结果。对函数调用api的顺序进行记录，生成函数调用api的序列。以此生成一个class和apk的调用序列。目的是检测代码相似度。-Extraction sibling directory folder named " smali"　The contents of the folder by apktool results apk decompilation. Api function call in the order recorded, generated api function call sequences. In order to generate a sequence of calls of class and apk. The purpose is to detect code similarity.