Python Selenium Do-While 循环

Question

我正在尝试使用以下代码完成一个 do-while 循环。我们正在等待处理报告，它只会在完成并单击检索按钮后显示在网页上。代码，

# Go to list and click retrieve
driver.find_element(By.CSS_SELECTOR, "#j_idt40Lbl").click()
time.sleep(20) # takes a while for their side to run
retrieve = driver.find_element_by_css_selector("#tab_reportList\:listPgFrm\:listPgRetrBtn")
retrieve.click() ### Do this action ###
time.sleep(5)
retrieve.click()
time.sleep(5)
retrieve.click()
time.sleep(3)

# Click report file
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#tab_reportList\:listPgFrm\:listDataTable_0\:0\:reportLink"))).click() 
### Until this is visible ###

Answer 1

如果最终变得可见的元素最初没有出现在页面上，您的代码可以是这样的：

driver.find_element(By.CSS_SELECTOR, "#j_idt40Lbl").click()
time.sleep(20)
while True:
    driver.find_element_by_css_selector("#tab_reportList\:listPgFrm\:listPgRetrBtn").click()
    time.sleep(5)
    if driver.find_elements_by_css_selector("#tab_reportList\:listPgFrm\:listDataTable_0\:0\:reportLink"):
        WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "#tab_reportList\:listPgFrm\:listDataTable_0\:0\:reportLink"))).click()
        break

5 秒和 20 秒的硬编码睡眠看起来不太好。如果可能的话，应该通过预期条件显式等待来更改它们

Python Selenium Do-While 循环

Python Selenium Do-While Loop

python

selenium

while-loop

do-while

web-scraping