import jieba
seg_list = jieba.cut("南京市长江大桥欢迎你。", cut_all=True)
print(type(seg_list),seg_list)

seg_list1 = jieba.lcut("南京市长江大桥欢迎你。", cut_all=False)
print(type(seg_list1),seg_list1)

seg_list2 = jieba.cut_for_search("南京市长江大桥欢迎你。")
print(type(seg_list2),seg_list2)
print("全模式：" + "/ ".join(seg_list))
print("精确模式：" + "/ ".join(seg_list1))
print("搜索引擎模式：" + "/ ".join(seg_list2))

import jieba.posseg as psg

seg_list = psg.cut("我要进行关键词提取")
print([(s.word, s.flag) for s in seg_list])
# [('我', 'r'), ('要', 'v'), ('进行', 'v'), ('关键词', 'n'), ('提取', 'v')]

import jieba.posseg as psg

seg_list = psg.cut("我要进行关键词提取")
print([(s.word, s.flag) for s in seg_list if s.flag.startswith('v')])