突然發現了一個保存字典很爽的方法，直接用.pkl保存
而且其實不止字典，其他的python數據格式也是可以用這個方式保存的，相見恨晚Orz…
import pickle
def save_pkl(obj, pkl_name):
with open(pkl_name + '.pkl', 'wb') as f:
pickle.dump(obj, f, pickle.HIGHEST_PROTOCOL)
def load_pkl(pkl_name):
with open(pkl_name + '.pkl', 'rb') as f:
return pickle.load(f)