{"id":491149,"student_id":10,"content":"\"\"\"\n在 Python 中,if-else 和 if-elif-else 是兩種不同的語法結構,它們的區別如下:\n\nif-else:該結構中,如果 if 語句的條件為真,就執行 if 塊中的代碼;如果條件為假,\n就執行 else 塊中的代碼。該結構可以用於測試一個條件並執行不同的代碼塊。\n\nif-elif-else:該結構中,先檢查 if 語句的條件,如果為真,執行相應的代碼塊。\n如果 if 條件為假,則檢查下一個 elif 語句的條件,如果為真,執行相應的代碼塊;以此類推。\n如果所有的 elif 語句都為假,則執行最後的 else 塊中的代碼。\n\n試著執行底下三個範例,並觀察結果\n\"\"\"\n\n\n# 範例一會輸出:x 大於 5\nx = 10\n\nif x \u003e 5:\n print(\"x 大於 5\")\nelse:\n print(\"x 小於或等於 5\")\n\n\n# 範例二會輸出:x 大於 5 而且小於或等於 15\nx = 10\n\nif x \u003e 15:\n print(\"x 大於 15\")\nelif x \u003e 5:\n print(\"x 大於 5 而且小於或等於 15\")\nelse:\n print(\"x 小於或等於 5\")\n \n\n# 範例三會輸出:什麼都不會印出..\nx = 5\n\nif x \u003e 15:\n print(\"x 大於 15\")\nelif x \u003e 5:\n print(\"x 大於 5 而且小於或等於 15\")","created_at":"2023-02-07T15:19:38.638+08:00","updated_at":"2023-02-07T15:35:18.198+08:00","name":"if、else、elif 語法差別","language":"python","screenshot":{"url":"https://cdn5.koding.school/uploads/project/screenshot/491149/6aec0b90b2993a9f8b585bb8e978bf30.jpg"},"parent_id":4,"plugin":"","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":115,"hashid":"2pdsr4269","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}
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