Python 0到1 商務應用與實作的最強實戰指南(I)/CH2-11_戴若竹_IF判斷式操作 - 資料操作的大判官.ipynb

{"cells":[{"cell_type":"markdown","metadata":{},"source":["# IF判斷式操作 - 資料操作的大判官\n","#### 作者：戴若竹(臺灣行銷研究特邀作者)\n","#### 完整文章介紹鏈接"]},{"cell_type":"markdown","metadata":{},"source":["## 一、基本語法\n","### 1.\t關鍵字有三種：「if」、「elif」及「else」。\n","### 2.\t可以有零個或多個 elif 部分，以及一個可寫可不寫的 else 部分。\n","### 3.\tif-elif-else條件式(Condition)最後需以「：」結尾。\n","### 4.\t程式執行(Statement)的部分要縮排。\n"]},{"cell_type":"code","execution_count":null,"metadata":{},"outputs":[],"source":["if condition1: # 條件一\n","    statement1\n","\u000belif condition2:\u000b # 條件二\n","    statement2\n","\u000belif condition3:\u000b # 條件三\n","    statement3\n","\u000belse:\u000b # 其他情形\n","    statement4\u000b"]},{"cell_type":"markdown","metadata":{},"source":["## 二、應用"]},{"cell_type":"code","execution_count":1,"metadata":{"tags":[]},"outputs":[{"name":"stdout","output_type":"stream","text":"及格！\n"}],"source":["score = 70 # 設定成績變數\n","\n","if score >= 60: # 60分以上及格\n","    print(\"及格！\")\n","else: # 不符合以上條件的時候執行\n","    print(\"不及格！\")\n"]},{"cell_type":"code","execution_count":2,"metadata":{"tags":[]},"outputs":[{"name":"stdout","output_type":"stream","text":"B\n"}],"source":["# 加入elif敘述\n","\n","score = 70 # 設定成績變數\n","\n","if (score > 80):\n","    print(\"A\")\n","elif (score >= 70) & (score < 80): # 加上括號分群幫助易讀\n","    print(\"B\")\n","elif (score >= 60) & (score < 70):\n","    print(\"C\")\n","else:\n","    print(\"F\")\n"]}],"nbformat":4,"nbformat_minor":2,"metadata":{"language_info":{"codemirror_mode":{"name":"ipython","version":3},"file_extension":".py","mimetype":"text/x-python","name":"python","nbconvert_exporter":"python","pygments_lexer":"ipython3","version":3},"orig_nbformat":2}}