劉洸瑋Python字串string方法methods

txt = "劉洸瑋 love 蘋果, 蘋果是我 are my favorite 水果蘋果" print(txt.count("蘋果")) print('先練習內建函數len',len(txt)) print('find',txt.find("蘋果")) print(''rfind',txt.rfind("蘋果"))

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劉洸瑋google co-laboratory機器學習

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劉洸瑋python寫入write迴圈範圍range

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