010_10_Join_Lists.ipynb

{"nbformat":4,"nbformat_minor":2,"metadata":{"orig_nbformat":4,"language_info":{"name":"python","version":"3.8.5","mimetype":"text/x-python","codemirror_mode":{"name":"ipython","version":3},"pygments_lexer":"ipython3","nbconvert_exporter":"python","file_extension":".py"},"kernelspec":{"name":"python3","display_name":"Python 3.8.5 64-bit ('base': conda)"},"interpreter":{"hash":"00034aa5cd6c44013b830fd98c7a620a61a498e75425ca81fcc1166b84a69895"},"colab":{"name":"010_10_Join_Lists.ipynb","provenance":[],"collapsed_sections":[]}},"cells":[{"cell_type":"markdown","source":["# การ Join Lists"],"metadata":{"id":"NK7uWeDRGvJJ"}},{"cell_type":"markdown","source":["มีหลายวิธีที่สามารถรวม item ของ list 2 อันไว้รวมกันได้ โดยวิธีที่ง่ายที่สุดคือการใช้เครื่องหมาย `+`"],"metadata":{"id":"AQdtZlfVGvJi"}},{"cell_type":"markdown","source":["## ตัวอย่าง\r\n","รวม list 2 อันไว้ด้วยกัน"],"metadata":{"id":"vAd42NBqGvJm"}},{"cell_type":"code","execution_count":null,"source":["list1 = [\"a\", \"b\", \"c\"]\r\n","list2 = [1, 2, 3]\r\n","\r\n","list3 = list1 + list2\r\n","print(list3)"],"outputs":[{"output_type":"stream","name":"stdout","text":["['a', 'b', 'c', 1, 2, 3]\n"]}],"metadata":{"id":"RgX2QPiKGvJp","outputId":"56eb1071-05d7-49ba-bb89-8719b80e6e90"}},{"cell_type":"markdown","source":["มีอีกวิธีที่รวม item ของ list ทั้งสองอันได้ โดยการ append item ทั้งหมดจาก list2 มายัง list1 ทีละ item "],"metadata":{"id":"c6-YjynHGvJz"}},{"cell_type":"markdown","source":["## ตัวอย่าง\r\n","Append list2 ไปใน list1"],"metadata":{"id":"32EC2aB6GvJ2"}},{"cell_type":"code","execution_count":null,"source":["list1 = [\"a\", \"b\" , \"c\"]\r\n","list2 = [1, 2, 3]\r\n","\r\n","for x in list2:\r\n","  list1.append(x)\r\n","\r\n","print(list1)"],"outputs":[{"output_type":"stream","name":"stdout","text":["['a', 'b', 'c', 1, 2, 3]\n"]}],"metadata":{"id":"vYjtz8EWGvJ3","outputId":"05236440-156a-4f09-f95b-170d5bbb1432"}},{"cell_type":"markdown","source":["สามารถใช้ method extend() ได้ โดยจะเป็นการเขียน item ทุกตัวใน list ต่อท้ายเข้าไป"],"metadata":{"id":"oAFhocorGvJ5"}},{"cell_type":"markdown","source":["## ตัวอย่าง\r\n","ใช้ method extend() เพิ่ม item ของ list2 ไปใน list1"],"metadata":{"id":"MjMM1CI4GvJ8"}},{"cell_type":"code","execution_count":null,"source":["list1 = [\"a\", \"b\" , \"c\"]\r\n","list2 = [1, 2, 3]\r\n","\r\n","list1.extend(list2)\r\n","print(list1)"],"outputs":[{"output_type":"stream","name":"stdout","text":["['a', 'b', 'c', 1, 2, 3]\n"]}],"metadata":{"id":"EEZcw52rGvJ-","outputId":"891b4961-b7c8-467e-a11e-92b6145e86bb"}}]}