Cnki Advanced Search

async () => {  // --- Config: fill in actual values ---  const query = "KEYWORDS";          // row 1 search keywords  const fieldType = "SU";           // SU=主题, TI=篇名, KY=关键词, TKA=篇关摘, AB=摘要  const query2 = "";                // row 2 keywords (optional, "" to skip)  const fieldType2 = "KY";          // row 2 field type  const rowLogic = "AND";           // AND=并且, OR=或者, NOT=不含 (between row 1 and 2)  const sourceTypes = ["CSSCI"];    // any of: "SCI", "EI", "hx", "CSSCI", "CSCD" ([] = all)  const startYear = "";             // e.g. "2020" or "" for no limit  const endYear = "";               // e.g. "2025" or "" for no limit  const author = "";                // author name or ""  const journal = "";               // journal name or ""
  // --- Wait for form ---  await new Promise((r, j) => {    let n = 0;    const c = () => { if (document.querySelector('#txt_1_value1')) r(); else if (n++ > 30) j('timeout'); else setTimeout(c, 500); };    c();  });
  // Captcha check  const cap = document.querySelector('#tcaptcha_transform_dy');  if (cap && cap.getBoundingClientRect().top >= 0) return { error: 'captcha' };
  const selects = Array.from(document.querySelectorAll('select')).filter(s => s.offsetParent !== null);
  // --- Source type: uncheck 全部, check targets ---  if (sourceTypes.length > 0) {    const gjAll = document.querySelector('#gjAll');    if (gjAll && gjAll.checked) gjAll.click();    for (const st of sourceTypes) {      const cb = document.querySelector('#' + st);      if (cb && !cb.checked) cb.click();    }  }
  // --- Row 1: field type + keyword ---  selects[0].value = fieldType;  selects[0].dispatchEvent(new Event('change', { bubbles: true }));  const input = document.querySelector('#txt_1_value1');  input.value = query;  input.dispatchEvent(new Event('input', { bubbles: true }));
  // --- Row 2: field type + keyword (optional) ---  if (query2) {    selects[5].value = rowLogic; // row logic: AND/OR/NOT    selects[5].dispatchEvent(new Event('change', { bubbles: true }));    selects[6].value = fieldType2;    selects[6].dispatchEvent(new Event('change', { bubbles: true }));    const input2 = document.querySelector('#txt_2_value1');    input2.value = query2;    input2.dispatchEvent(new Event('input', { bubbles: true }));  }
  // --- Author (optional) ---  if (author) {    const auInput = document.querySelector('#au_1_value1');    if (auInput) { auInput.value = author; auInput.dispatchEvent(new Event('input', { bubbles: true })); }  }
  // --- Journal (optional) ---  if (journal) {    const magInput = document.querySelector('#magazine_value1');    if (magInput) { magInput.value = journal; magInput.dispatchEvent(new Event('input', { bubbles: true })); }  }
  // --- Date range (optional) ---  if (startYear) { selects[14].value = startYear; selects[14].dispatchEvent(new Event('change', { bubbles: true })); }  if (endYear) { selects[15].value = endYear; selects[15].dispatchEvent(new Event('change', { bubbles: true })); }
  // --- Submit ---  document.querySelector('div.search')?.click();
  // Wait for results  await new Promise((r, j) => {    let n = 0;    const c = () => {      if (document.body.innerText.includes('条结果')) r();      else if (n++ > 40) j('timeout');      else setTimeout(c, 500);    };    setTimeout(c, 2000);  });
  // Captcha check again  const cap2 = document.querySelector('#tcaptcha_transform_dy');  if (cap2 && cap2.getBoundingClientRect().top >= 0) return { error: 'captcha' };
  return {    query, fieldType, query2, fieldType2, rowLogic,    sourceTypes, startYear, endYear, author, journal,    total: document.querySelector('.pagerTitleCell')?.innerText?.match(/([\d,]+)/)?.[1] || '0',    page: document.querySelector('.countPageMark')?.innerText || '1/1',    url: location.href  };}