speed.py 文件源码

def to_string(self):
        sr = self.arr.astype(np.int32).ravel()
        vals = []
        for v in sr:
            vals.append(str(v))
        label = self.label if self.label is not None else "?"
        h, w = self.arr.shape
        return "%s||%d||%d||%s" % (label, h, w, "".join(vals))