multipart POST problem

[jokerasz]

How to construct a multipart POST request, such as the following sub-？If have a detailed explanation and a screenshot, will be very grateful.
WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_3.3"

渡邊
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_3.6"

諒馬
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_4"

[email protected]
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_5"

横浜市瀬谷区宮沢
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_6"

------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_1"

Other|0
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_9"

¥ 100
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_7"

once
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="input_11"

------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="gform_ajax"

form_id=4&title=&description=&tabindex=0
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="is_submit_4"

1
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="gform_submit"

4
------WebKitFormBoundaryB3CJKUiRmbcyepbN
Content-Disposition: form-data; name="gform_unique_id"

[jokerasz]

Problem is solved