我试图弄清楚 Purdue 如何显示他们的课程列表。我正在检查网页的源代码，我发现最接近的是：
<!-- ** END OF twbkwbis.P_OpenDoc ** -->
<DIV class="infotextdiv"><TABLE CLASS="infotexttable" SUMMARY="This layout table contains information that may be helpful in understanding the content and functionality of this page. It could be a brief set of instructions, a description of error messages, or other special information."><TR><TD CLASS="indefault"><IMG SRC="/wtlgifs/web_info_cascade.png" ALT="Information" CLASS="headerImg" TITLE="Information" NAME="web_info" HSPACE=0 VSPACE=0 BORDER=0 HEIGHT=12 WIDTH=14></TD><TD CLASS="indefault"><SPAN class="infotext"> Use any combination of selection options to narrow your search for courses. You must choose at least one Subject. When your selection is complete, choose Get Courses to perform the search.</SPAN></TD></TR></TABLE><P></DIV>
<BR>
<FORM ACTION="/prod/bwckctlg.p_display_courses" METHOD="POST">
<INPUT TYPE="hidden" NAME="term_in" VALUE="201320">
<INPUT TYPE="hidden" NAME="sel_subj" VALUE="dummy">
<INPUT TYPE="hidden" NAME="sel_levl" VALUE="dummy">
<INPUT TYPE="hidden" NAME="sel_schd" VALUE="dummy">
<INPUT TYPE="hidden" NAME="sel_coll" VALUE="dummy">
<INPUT TYPE="hidden" NAME="sel_divs" VALUE="dummy">
<INPUT TYPE="hidden" NAME="sel_dept" VALUE="dummy">
<INPUT TYPE="hidden" NAME="sel_attr" VALUE="dummy">
<TABLE CLASS="dataentrytable" SUMMARY="This table is used for input criteria for catalog courses.">
<TR>
<TD CLASS="delabel" scope="row" ><LABEL for=subj_id><SPAN class="fieldlabeltext">Subject: </SPAN></LABEL></TD>
<TD CLASS="dedefault">
<SELECT NAME="sel_subj" SIZE="3" MULTIPLE ID="subj_id">
<OPTION VALUE="AAE">AAE-Aero & Astro Engineering
<OPTION VALUE="AAS">AAS-African American Studies
<OPTION VALUE="ABE">ABE-Agri & Biol Engineering
<OPTION VALUE="ACC">ACC-Accounting
<OPTION VALUE="ACE">ACE-Adult Continuing Education
<OPTION VALUE="ACS">ACS-Applied Computer Science
<OPTION VALUE="AD">AD-Art & Design
<OPTION VALUE="AERO">AERO-Aerospace Study - IU
<OPTION VALUE="AFRO">AFRO-Afro-American Studies
<OPTION VALUE="AFT">AFT-Aerospace Studies
<OPTION VALUE="AGEC">AGEC-Agricultural Economics
<OPTION VALUE="AGR">AGR-Agriculture
<OPTION VALUE="AGRY">AGRY-Agronomy
<OPTION VALUE="AHLT">AHLT-Allied Health Sciences-IU
<OPTION VALUE="AHS">AHS-Art: History
<OPTION VALUE="AMST">AMST-American Studies
<OPTION VALUE="ANAT">ANAT-Anatomy
<OPTION VALUE="ANSC">ANSC-Animal Sciences
<OPTION VALUE="ANTH">ANTH-Anthropology
<OPTION VALUE="ARAB">ARAB-Arabic
<OPTION VALUE="ARET">ARET-Architectural Engr Tech
<OPTION VALUE="ART">ART-Architectural Technology
<OPTION VALUE="AS">AS-Administrative Sciences
<OPTION VALUE="ASAM">ASAM-Asian American Studies
<OPTION VALUE="ASCS">ASCS-Arts &Sci Career Services
<OPTION VALUE="ASIA">ASIA-Asian Studies
<OPTION VALUE="ASL">ASL-American Sign Language
<OPTION VALUE="ASM">ASM-Agricultural Systems Mgmt
<OPTION VALUE="AST">AST-Astronomy - IU
<OPTION VALUE="ASTR">ASTR-Astronomy
<OPTION VALUE="AT">AT-Aviation Technology
<OPTION VALUE="BA">BA-Business Administration
<OPTION VALUE="BAND">BAND-Bands
<OPTION VALUE="BCHM">BCHM-Biochemistry
<OPTION VALUE="BCM">BCM-Bldg Construct Mgmt Tech
<OPTION VALUE="BGR">BGR-Boiler Gold Rush
<OPTION VALUE="BHS">BHS-Behavioral Sciences
<OPTION VALUE="BIOC">BIOC-Biochemistry-IU
<OPTION VALUE="BIOL">BIOL-Biological Sciences
<OPTION VALUE="BIOP">BIOP-Biophysics
<OPTION VALUE="BIOS">BIOS-Biostatistics
<OPTION VALUE="BITN">BITN-Biotechnology
<OPTION VALUE="BME">BME-Biomedical Engineering
<OPTION VALUE="BMET">BMET-Biomedical Elect Tech
<OPTION VALUE="BMS">BMS-Basic Medical Sciences
<OPTION VALUE="BSS">BSS-Behavioral & Social Sci
<OPTION VALUE="BTNY">BTNY-Botany & Plant Pathology
<OPTION VALUE="BUFW">BUFW-Business Fort Wayne - IU
<OPTION VALUE="BUKD">BUKD-Business Kelly Direct
<OPTION VALUE="BUPA">BUPA-Bus-Profess Accountancy
<OPTION VALUE="BUS">BUS-Business
<OPTION VALUE="CAND">CAND-Candidate
<OPTION VALUE="CDFS">CDFS-Child Dev &Family Studies
<OPTION VALUE="CE">CE-Civil Engineering
<OPTION VALUE="CEM">CEM-Construction Engr & Mgmt
<OPTION VALUE="CEMT">CEMT-Constr Engr Mgmt Tech
<OPTION VALUE="CET">CET-Civil Engineering Tech
<OPTION VALUE="CFS">CFS-Consumer & Family Sciences
<OPTION VALUE="CGT">CGT-Computer Graphics Tech
<OPTION VALUE="CHE">CHE-Chemical Engineering
<OPTION VALUE="CHEM">CHEM-Chemistry - IU
<OPTION VALUE="CHHS">CHHS-College of Hlth&Human Srv
<OPTION VALUE="CHM">CHM-Chemistry
<OPTION VALUE="CHNS">CHNS-Chinese
<OPTION VALUE="CIC">CIC Traveling Scholar
<OPTION VALUE="CIMT">CIMT-Computer Integr Mfg Tech
<OPTION VALUE="CIS">CIS-Computer Info Services
<OPTION VALUE="CIT">CIT-Computer & Info Tech-IU
<OPTION VALUE="CJUS">CJUS-Criminal Justice-IU
<OPTION VALUE="CLAS">CLAS-Classical Studies - IU
<OPTION VALUE="CLCS">CLCS-Classics
<OPTION VALUE="CLPH">CLPH-Clinical Pharmacy
<OPTION VALUE="CMCI">CMCI-CIC Common Market
<OPTION VALUE="CMCL">CMCL-Communications & Cultures
<OPTION VALUE="CMET">CMET-Constr Mgmt & Engr Tech
<OPTION VALUE="CMLT">CMLT-Comparative Literature-IU
<OPTION VALUE="CMPL">CMPL-Comparative Literature
<OPTION VALUE="CNET">CNET-Construction Engr Tech
<OPTION VALUE="CNIT">CNIT-Computer & Info Tech
<OPTION VALUE="CNT">CNT-Construction Technology
<OPTION VALUE="COAS">COAS-College Arts & Sciences
<OPTION VALUE="COGS">COGS-Cognitive Science
<OPTION VALUE="COLL">COLL-College of Arts & Science
<OPTION VALUE="COM">COM-Communication
<OPTION VALUE="COMM">COMM-Communication - IU
<OPTION VALUE="CPB">CPB-Comparative Pathobiology
<OPTION VALUE="CPET">CPET-Computer Engineering Tech
<OPTION VALUE="CPSY">CPSY-Counseling Psychology
<OPTION VALUE="CRJU">CRJU-Criminal Justice-IU
<OPTION VALUE="CS">CS-Computer Sciences
<OPTION VALUE="CSCI">CSCI-Computer Science - IU
<OPTION VALUE="CSD">CSD-Communic Sci & Disorders
<OPTION VALUE="CSR">CSR-Consumer ScI & Retailing
<OPTION VALUE="DANC">DANC-Dance
<OPTION VALUE="DAST">DAST-Dental Assisting
<OPTION VALUE="DHYG">DHYG-Dental Hygiene
<OPTION VALUE="DLTP">DLTP-Dental Lab Tech
<OPTION VALUE="DPIS">DPIS-Data Proc & Info
<OPTION VALUE="EALC">EALC-East Asian Lang & Cult
<OPTION VALUE="EAS">EAS-Earth & Atmospheric Sci
<OPTION VALUE="ECE">ECE-Electrical & Computer Engr
<OPTION VALUE="ECET">ECET-Electrical&Comp Engr Tech
<OPTION VALUE="ECON">ECON-Economics
<OPTION VALUE="EDCI">EDCI-Educ-Curric & Instruction
<OPTION VALUE="EDFA">EDFA-Foundations & Admin
<OPTION VALUE="EDHI">EDHI-Education Higher
<OPTION VALUE="EDPS">EDPS-Educ-Ed'l and Psy Studies
<OPTION VALUE="EDST">EDST-Ed Leadrship&Cultrl Fnd
<OPTION VALUE="EDUA">EDUA-Education Admin- IU
<OPTION VALUE="EDUC">EDUC-Education - IU
<OPTION VALUE="EEE">EEE-Environ & Ecological Engr
<OPTION VALUE="EEN">EEN - Energy Engineering
<OPTION VALUE="EMER">EMER-Emergency Medical Service
<OPTION VALUE="EN">EN-English - IU
<OPTION VALUE="ENE">ENE-Engineering Education
<OPTION VALUE="ENG">ENG-English - IU
<OPTION VALUE="ENGL">ENGL-English
<OPTION VALUE="ENGR">ENGR-First Year Engineering
<OPTION VALUE="ENTM">ENTM-Entomology
<OPTION VALUE="ENTR">ENTR-Entrepreneurship
<OPTION VALUE="EPCS">EPCS-Engr Proj Cmity Service
<OPTION VALUE="EQU">EQU-Equine Management
<OPTION VALUE="ESC">ESC-Engineering Sciences
<OPTION VALUE="ET">ET-Electrical Technology
<OPTION VALUE="ETCS">ETCS-Engr Tech & Computer Sci
<OPTION VALUE="ETHN">ETHN-Ethnic Studies
<OPTION VALUE="FCSM">FCSM-Fam Cons Sci:Merchandise
<OPTION VALUE="FILM">FILM-Film Studies
<OPTION VALUE="FINA">FINA-Fine Arts - IU
<OPTION VALUE="FIS">FIS-Forensic & Investig Sci
<OPTION VALUE="FLAC">FLAC-Foreign Lang & Cult-IU
<OPTION VALUE="FLL">FLL-Foreign Lang & Literatures
<OPTION VALUE="FLLC">FLLC-Foster Intl Liv/Learn Ctr
<OPTION VALUE="FM">FM-Fitness Management
<OPTION VALUE="FN">FN-Foods And Nutrition
<OPTION VALUE="FNR">FNR-Forestry&Natural Resources
<OPTION VALUE="FOLK">FOLK-Folklore
<OPTION VALUE="FR">FR-French
<OPTION VALUE="FREN">FREN-French - IU
<OPTION VALUE="FRST">FRST-Foreign Study
<OPTION VALUE="FS">FS-Food Science
<OPTION VALUE="FVS">FVS-Film And Video Studies
<OPTION VALUE="FWAI">FWAI-Ft Wayne Are Inst - IU
<OPTION VALUE="FWAS">FWAS - Arts And Sciences-FW
<OPTION VALUE="GBA">GBA-Business-Accounting
<OPTION VALUE="GBG">GBG-Business-General
<OPTION VALUE="GBH">GBH-General Business Health
<OPTION VALUE="GBI">GBI-Business-International
<OPTION VALUE="GBM">GBM-Business-Marketing
<OPTION VALUE="GEOG">GEOG-Geography
<OPTION VALUE="GEOL">GEOL-Geology
<OPTION VALUE="GEP">GEP-Global Engineering Program
<OPTION VALUE="GER">GER-German
<OPTION VALUE="GERN">GERN-Gerontology
<OPTION VALUE="GNC">GNC-Community College
<OPTION VALUE="GNS">GNS-Community College
<OPTION VALUE="GRAD">GRAD-Graduate Studies
<OPTION VALUE="GREK">GREK-Greek
<OPTION VALUE="GS">GS-General Studies
<OPTION VALUE="HDFS">HDFS-Human Dev &Family Studies
<OPTION VALUE="HEBR">HEBR-Hebrew
<OPTION VALUE="HER">HER-Herron Art
<OPTION VALUE="HHS">HHS-College Health & Human Sci
<OPTION VALUE="HIA">HIA-Health Info Administration
<OPTION VALUE="HIST">HIST-History
<OPTION VALUE="HK">HK-Health And Kinesiology
<OPTION VALUE="HON">HON-Honors - IU
<OPTION VALUE="HONR">HONR-Honors
<OPTION VALUE="HORT">HORT-Horticulture
<OPTION VALUE="HPER">HPER-Health Physical Ed &Recr
<OPTION VALUE="HPSC">HPSC-History & Phil Of Science
<OPTION VALUE="HSC">HSC-Health Sciences-IU
<OPTION VALUE="HSCI">HSCI-Health Sciences
<OPTION VALUE="HSRV">HSRV-Human Services
<OPTION VALUE="HTM">HTM-Hospitality & Tourism Mgmt
<OPTION VALUE="HUMA">HUMA-Humanities - General
<OPTION VALUE="IDE">IDE-Interdisciplinary Engr
<OPTION VALUE="IDIS">IDIS-Interdisciplinary Studies
<OPTION VALUE="IE">IE-Industrial Engineering
<OPTION VALUE="IET">IET-Industrial Engr Technology
<OPTION VALUE="IIM">IIM-Integrated Info Mgmt-IU
<OPTION VALUE="ILCS">ILCS-Intl Lang&Culture Studies
<OPTION VALUE="IM">IM-Informatics
<OPTION VALUE="INFO">INFO-Informatics -IU
<OPTION VALUE="INST">INST-India Studies-IU
<OPTION VALUE="INTG">INTG-Integrated Studies
<OPTION VALUE="INTL">INTL-International
<OPTION VALUE="INTR">INTR-Interior Design-IU
<OPTION VALUE="IPPH">IPPH-Industrial & Phys Pharm
<OPTION VALUE="IST">IST-Information Systems&Tech
<OPTION VALUE="IT">IT-Industrial Technology
<OPTION VALUE="ITAL">ITAL-Italian
<OPTION VALUE="ITC">ITC-Information Tech&Computers
<OPTION VALUE="ITCS">ITCS-Indust & Tech:Constr Tech
<OPTION VALUE="ITS">ITS-Information Tech Systems
<OPTION VALUE="JOUR">JOUR-Journalism
<OPTION VALUE="JPNS">JPNS-Japanese
<OPTION VALUE="JWST">JWST-Jewish Studies
<OPTION VALUE="KINS">KINS-Kinsey Institute
<OPTION VALUE="LA">LA-Landscape Architecture
<OPTION VALUE="LALS">LALS-Latina Am&Latino Studies
<OPTION VALUE="LAS">LAS-Latin American Studies
<OPTION VALUE="LATN">LATN-Latin
<OPTION VALUE="LAW">LAW-Law
<OPTION VALUE="LBST">LBST-Liberal Studies
<OPTION VALUE="LC">LC-Languages and Cultures
<OPTION VALUE="LCME">LCME-Lafayette Center Med Educ
<OPTION VALUE="LGBT">LGBT-Lesb,Gay, Bisex&Transgndr
<OPTION VALUE="LING">LING-Linguistics
<OPTION VALUE="LS">LS-Land Surveying
<OPTION VALUE="LSTU">LSTU-Labor Studies
<OPTION VALUE="LTHN">LTHN-Lithuanian
<OPTION VALUE="MA">MA-Mathematics
<OPTION VALUE="MARS">MARS-Medieval &Renaissance Std
<OPTION VALUE="MATH">MATH-Mathematics
<OPTION VALUE="MCMP">MCMP-Med Chem &Molecular Pharm
<OPTION VALUE="ME">ME-Mechanical Engineering
<OPTION VALUE="MED">MED-Medicine
<OPTION VALUE="MEST">MEST-Medieval Studies-IU
<OPTION VALUE="MET">MET-Mechanical Engr Tech
<OPTION VALUE="MFET">MFET-Manufacturing Engr Tech
<OPTION VALUE="MGEN">MGEN-Medical Genetics
<OPTION VALUE="MGMT">MGMT-Management
<OPTION VALUE="MHHS">MHHS-Med Humanities & Hlth Sci
<OPTION VALUE="MICR">MICR-Microbiology
<OPTION VALUE="MIL">MIL-Military - IU
<OPTION VALUE="MIS">MIS-Management Info Systems
<OPTION VALUE="MNEU">MNEU-Medical Neurobiology - IU
<OPTION VALUE="MSCI">MSCI-Medical Sciences
<OPTION VALUE="MSE">MSE-Materials Engineering
<OPTION VALUE="MSL">MSL-Military Science & Ldrshp
<OPTION VALUE="MSPT">MSPT - Motorsports Studies
<OPTION VALUE="MSTD">MSTD-Museum Studies
<OPTION VALUE="MT">MT-Mathematics-Butler
<OPTION VALUE="MUS">MUS-Music History & Theory
<OPTION VALUE="NELC">NELC-Near Eastern Lang
<OPTION VALUE="NEWM">NEWM-New Media
<OPTION VALUE="NMCM">NMCM-New Media Communication
<OPTION VALUE="NRES">NRES-Natural Res & Environ Sci
<OPTION VALUE="NS">NS-Naval Science
<OPTION VALUE="NUCL">NUCL-Nuclear Engineering
<OPTION VALUE="NUPH">NUPH-Nuclear Pharmacy
<OPTION VALUE="NUR">NUR-Nursing
<OPTION VALUE="NURS">NURS-Nursing - IU
<OPTION VALUE="NUTR">NUTR-Nutrition Science
<OPTION VALUE="OBHR">OBHR-Orgnztnl Bhvr &Hum Resrce
<OPTION VALUE="OLS">OLS-Organiz Ldrshp&Supervision
<OPTION VALUE="OVST">OVST-Overseas Studies
<OPTION VALUE="PACS">PACS-Peace & Conflict Studies
<OPTION VALUE="PATH">PATH-Pathology
<OPTION VALUE="PBHL">PBHL-Public Health
<OPTION VALUE="PCTX">PCTX-Pharmacology & Toxicology
<OPTION VALUE="PES">PES-Physical Education Skills
<OPTION VALUE="PHAD">PHAD-Pharmacy Administration
<OPTION VALUE="PHAR">PHAR-Pharmacology - IU
<OPTION VALUE="PHIL">PHIL-Philosophy
<OPTION VALUE="PHPR">PHPR-Pharmacy Practice
<OPTION VALUE="PHRM">PHRM-Pharmacy
<OPTION VALUE="PHSL">PHSL-Physiology
<OPTION VALUE="PHST">PHST-Philanthropic Studies
<OPTION VALUE="PHYS">PHYS-Physics
<OPTION VALUE="PLSC">PLSC-Plant Sciences
<OPTION VALUE="PLSH">PLSH-Polish
<OPTION VALUE="POL">POL-Political Science
<OPTION VALUE="POLS">POLS-Political Science - IU
<OPTION VALUE="PPE">PPE-Professional Practice-Engr
<OPTION VALUE="PPOL">PPOL-Public Policy
<OPTION VALUE="PPT">PPT-Professional Practice-Tech
<OPTION VALUE="PSY">PSY-Psychology
<OPTION VALUE="PSYI">PSYI-Psychology -IU
<OPTION VALUE="PTGS">PTGS-Portuguese
<OPTION VALUE="PULM">PULM-Pulmonary&Crit Care Med
<OPTION VALUE="RADI">RADI-Radiology
<OPTION VALUE="RADX">RADX-Radiologic Science
<OPTION VALUE="RECR">RECR-Recreation Leadership
<OPTION VALUE="REG">REG-Reg File Maintenance
<OPTION VALUE="REL">REL-Religious Studies
<OPTION VALUE="RUSS">RUSS-Russian
<OPTION VALUE="SA">SA-Study Abroad
<OPTION VALUE="SCI">SCI-General Science
<OPTION VALUE="SE">SE-Systems Engineering
<OPTION VALUE="SERV">SERV-Service Learning
<OPTION VALUE="SHRS">SHRS-Schl of Health&Rehab Sci
<OPTION VALUE="SLA">SLA-School of Liberal Arts
<OPTION VALUE="SLAV">SLAV-Slavic Lang & Lit
<OPTION VALUE="SLHS">SLHS-Speech, Lang&Hear Science
<OPTION VALUE="SLIS">SLIS-Lib & Info Science
<OPTION VALUE="SOC">SOC-Sociology
<OPTION VALUE="SPAN">SPAN-Spanish
<OPTION VALUE="SPCH">SPCH-Speech - IU
<OPTION VALUE="SPEA">SPEA-Public & Environ Affairs
<OPTION VALUE="SRCT">SRCT-Serbo-Croatian
<OPTION VALUE="STAR">STAR-Summer Trans Advis & Reg
<OPTION VALUE="STAT">STAT-Statistics
<OPTION VALUE="SUPV">SUPV-Supervision - IU
<OPTION VALUE="SWAH">SWAH-Swahili
<OPTION VALUE="SWK">SWK-Social Work-IU
<OPTION VALUE="SWRK">SWRK-Social Work
<OPTION VALUE="TCEM">TCEM-Tour Conventns&Event Mgmt
<OPTION VALUE="TCM">TCM-Technical Communications
<OPTION VALUE="TCOM">TCOM-Communications Gts - IU
<OPTION VALUE="TECH">TECH-Technology
<OPTION VALUE="TEL">TEL-Telecommunications - IU
<OPTION VALUE="THTR">THTR-Theatre
<OPTION VALUE="TLI">TLI-Technology Ldrshp Innovatn
<OPTION VALUE="UCOL">UCOL-University College -IU
<OPTION VALUE="URDU">URDU-Urdu
<OPTION VALUE="USP">USP-Undergrad Studies Prog
<OPTION VALUE="VCD">VCD-Visual Comm & Design
<OPTION VALUE="VCS">VCS-Veterinary Clinical Sci
<OPTION VALUE="VM">VM-Veterinary Medicine
<OPTION VALUE="WLAC">WLAC-World Languages&Culture
<OPTION VALUE="WOST">WOST-Women's Studies
<OPTION VALUE="YDAE">YDAE-Youth Develop & Ag Educ
<OPTION VALUE="ZOOL">ZOOL-Zoology
</SELECT>
</TD>
</TR>
<TR>
我从上面删除了很多 html 代码以节省空间，因为它是多余的。要查看所有内容，您可以转到我在这篇文章底部提供的链接。我对 Web 开发语言不是很熟悉，但我正在尝试找到一种方法来复制此搜索，这样我就可以制作一个 iPhone 应用程序，该应用程序将向网站发送 POST 并填写指定的字段。例如：
<FORM ACTION="/prod/bwckctlg.p_display_courses" METHOD="POST">
<INPUT TYPE="hidden" NAME="term_in" VALUE="201320">
<INPUT TYPE="hidden" NAME="sel_subj" VALUE="CS">
这应该会向我展示 2013 年普渡大学的 CS 课程列表。如何将其发送到 Web 浏览器以执行？有没有办法可以从中构建一个链接并将其粘贴到我的网络浏览器中给我看？如果这是一个令人困惑的问题，我很抱歉，如果您不明白我的意思，请自己访问普渡网站并选择 Spring 2013，然后单击课程类型并点击搜索。URL 不会更改为任何有用的内容，但正确的数据（类）会显示在网页上。我想知道如何复制它，以便可以在我正在尝试制作的 iPhone 应用程序中使用它。为简单起见，我首先尝试在我的网络浏览器中复制它。
这是我所指的网站的链接： Purdue