我的大部分代碼都能正常作業，但有一個揮之不去的問題。這不是我下面的完整代碼，但為了便于閱讀，我只選擇了一部分。我正在從網頁（在 imgs2 中）抓取 URL 串列，然后從 URL 串列中抓取資訊。我想根據第一個收集的結果創建第二個 URL 串列。（見下面的 img_url2）。發生的情況是，它不是將每個新 url 都附加到串列中，而是用新的替換前一個。知道如何將它們全部添加到串列中嗎？
driver.get("https://superrare.com/market?market-options=%7B%22first%22:30,%22orderBy%22:%22RECENT_NFT_EVENT_BY_TOKEN_CONTRACT_ADDRESS_AND_TOKEN_ID__TIMESTAMP_DESC%22,%22fileTypes%22:%5B%22image/jpeg%22,%22image/png%22%5D,%22listPrice%22:false,%22isGenesis%22:false,%22isSeries%22:false,%22neverReceivedOffer%22:false,%22reservePrice%22:false,%22liveAuctions%22:false,%22upcomingAuctions%22:false,%22hasSold%22:false,%22ownedByCreator%22:false,%22openOffers%22:false,%22artistsCollected%22:false,%22artistsYouFollow%22:false,%22artistsThatFollowYou%22:false,%22artistsFollowedByFollowed%22:false,%22lowerPriceRange%22:0,%22upperPriceRange%22:100000,%22numCreatorSales%22:false,%22lowerMintedRange%22:null,%22upperMintedRange%22:null,%22startCursor%22:%22WyJyZWNlbnRfbmZ0X2V2ZW50X2J5X3Rva2VuX2NvbnRyYWN0X2FkZHJlc3NfYW5kX3Rva2VuX2lkX190aW1lc3RhbXBfZGVzYyIsWyIyMDIyLTAyLTE3VDE0OjExOjMyKzAwOjAwIiwiMHhiOTMyYTcwYTU3NjczZDg5ZjRhY2ZmYmU4MzBlOGVkN2Y3NWZiOWUwIiwxNzYzMF1d%22,%22endCursor%22:%22WyJyZWNlbnRfbmZ0X2V2ZW50X2J5X3Rva2VuX2NvbnRyYWN0X2FkZHJlc3NfYW5kX3Rva2VuX2lkX190aW1lc3RhbXBfZGVzYyIsWyIyMDIyLTAyLTE2VDIwOjMxOjUxKzAwOjAwIiwiMHg0MjQyMzk5YzE2Yjc4MzgxOTZlZDMzZjE3OWU5OWUzZjk5Yjg4NGYyIiwzXV0=%22,%22lastEndCursor%22:%22WyJyZWNlbnRfbmZ0X2V2ZW50X2J5X3Rva2VuX2NvbnRyYWN0X2FkZHJlc3NfYW5kX3Rva2VuX2lkX190aW1lc3RhbXBfZGVzYyIsWyIyMDIyLTAyLTE3VDE0OjMwOjI3KzAwOjAwIiwiMHhiOTMyYTcwYTU3NjczZDg5ZjRhY2ZmYmU4MzBlOGVkN2Y3NWZiOWUwIiwyNzgxNl1d%22,%22lastStartCursor%22:false,%22hasPreviousPage%22:true,%22hasNextPage%22:true,%22reverse%22:false%7D")
imgs2 = WebDriverWait(driver,10).until(EC.presence_of_all_elements_located((By.XPATH, "//a[contains(@class,'Name-sc-7kf6vz-3')]")))
time.sleep(5)
for i in range(0,30):
img_url = []
for number, item in enumerate(imgs2, 1):
imgwors2 = item.get_attribute("href")
driver3 = webdriver.Chrome()
driver3.get(imgwors2)
def check_exists_by_xpath(xpath):
try:
WebDriverWait(driver3,55).until(EC.presence_of_all_elements_located((By.XPATH, xpath)))
except TimeoutException:
return False
return True
if check_exists_by_xpath("//h1[@class='collectible-detail__collectible-name']"):
imgsrc4 = WebDriverWait(driver3,65).until(EC.presence_of_all_elements_located((By.XPATH, "//h1[contains(@class,'collectible-detail__collectible-name')]")))
for i in imgsrc4:
title = i.text
else:
title = "none"
print(title)
img_url2 = []
imgsrc2 = WebDriverWait(driver3,55).until(EC.presence_of_all_elements_located((By.XPATH, "//p[@data-testid='artistName']/ancestor::a[contains(@class,'ChildrenLink')]")))
for i in imgsrc2:
biourl = i.get_attribute("href")
img_url2.append(biourl)
print(img_url2)
driver.close()
uj5u.com熱心網友回復：
我認為根據您的描述和代碼，變數img_url2應該在for回圈之前初始化
driver.get("https://superrare.com/market?market-options=%7B%22first%22:30,%22orderBy%22:%22RECENT_NFT_EVENT_BY_TOKEN_CONTRACT_ADDRESS_AND_TOKEN_ID__TIMESTAMP_DESC%22,%22fileTypes%22:%5B%22image/jpeg%22,%22image/png%22%5D,%22listPrice%22:false,%22isGenesis%22:false,%22isSeries%22:false,%22neverReceivedOffer%22:false,%22reservePrice%22:false,%22liveAuctions%22:false,%22upcomingAuctions%22:false,%22hasSold%22:false,%22ownedByCreator%22:false,%22openOffers%22:false,%22artistsCollected%22:false,%22artistsYouFollow%22:false,%22artistsThatFollowYou%22:false,%22artistsFollowedByFollowed%22:false,%22lowerPriceRange%22:0,%22upperPriceRange%22:100000,%22numCreatorSales%22:false,%22lowerMintedRange%22:null,%22upperMintedRange%22:null,%22startCursor%22:%22WyJyZWNlbnRfbmZ0X2V2ZW50X2J5X3Rva2VuX2NvbnRyYWN0X2FkZHJlc3NfYW5kX3Rva2VuX2lkX190aW1lc3RhbXBfZGVzYyIsWyIyMDIyLTAyLTE3VDE0OjExOjMyKzAwOjAwIiwiMHhiOTMyYTcwYTU3NjczZDg5ZjRhY2ZmYmU4MzBlOGVkN2Y3NWZiOWUwIiwxNzYzMF1d%22,%22endCursor%22:%22WyJyZWNlbnRfbmZ0X2V2ZW50X2J5X3Rva2VuX2NvbnRyYWN0X2FkZHJlc3NfYW5kX3Rva2VuX2lkX190aW1lc3RhbXBfZGVzYyIsWyIyMDIyLTAyLTE2VDIwOjMxOjUxKzAwOjAwIiwiMHg0MjQyMzk5YzE2Yjc4MzgxOTZlZDMzZjE3OWU5OWUzZjk5Yjg4NGYyIiwzXV0=%22,%22lastEndCursor%22:%22WyJyZWNlbnRfbmZ0X2V2ZW50X2J5X3Rva2VuX2NvbnRyYWN0X2FkZHJlc3NfYW5kX3Rva2VuX2lkX190aW1lc3RhbXBfZGVzYyIsWyIyMDIyLTAyLTE3VDE0OjMwOjI3KzAwOjAwIiwiMHhiOTMyYTcwYTU3NjczZDg5ZjRhY2ZmYmU4MzBlOGVkN2Y3NWZiOWUwIiwyNzgxNl1d%22,%22lastStartCursor%22:false,%22hasPreviousPage%22:true,%22hasNextPage%22:true,%22reverse%22:false%7D")
imgs2 = WebDriverWait(driver,10).until(EC.presence_of_all_elements_located((By.XPATH, "//a[contains(@class,'Name-sc-7kf6vz-3')]")))
time.sleep(5)
img_url2 = [] # <--- moved before the loop
for i in range(0,30):
for number, item in enumerate(imgs2, 1):
imgwors2 = item.get_attribute("href")
driver3 = webdriver.Chrome()
driver3.get(imgwors2)
def check_exists_by_xpath(xpath):
try:
WebDriverWait(driver3,55).until(EC.presence_of_all_elements_located((By.XPATH, xpath)))
except TimeoutException:
return False
return True
if check_exists_by_xpath("//h1[@class='collectible-detail__collectible-name']"):
imgsrc4 = WebDriverWait(driver3,65).until(EC.presence_of_all_elements_located((By.XPATH, "//h1[contains(@class,'collectible-detail__collectible-name')]")))
for i in imgsrc4:
title = i.text
else:
title = "none"
print(title)
imgsrc2 = WebDriverWait(driver3,55).until(EC.presence_of_all_elements_located((By.XPATH, "//p[@data-testid='artistName']/ancestor::a[contains(@class,'ChildrenLink')]")))
for i in imgsrc2:
biourl = i.get_attribute("href")
img_url2.append(biourl)
driver.close()
print(img_url2) # <--- moved below the loop
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