selenium not setting input field value

问题

Let's say we have this website https://www.coinichiwa.com/ which has a BET AMOUNT input box. It's html is:

<input autocomplete="off" id="betFa" name="a" maxlength="20" value="0.00000000" class="betinput" style="">

I need to add some value into it. Here is my code:

browser = webdriver.Firefox()
browser.get('https://www.coinichiwa.com')

browser.find_element_by_id("betFa").send_keys("0.00000005")
print browser.find_element_by_xpath("//input[contains(@id,'betFa')]").text

But it's neither setting it's value to "0.00000005" nor it printing the value of input.

I'm not sure what's going wrong. Can you suggest? Why it's not working?

回答1:

You need to clear() the text input first:

bet_fa = browser.find_element_by_id("betFa")
bet_fa.clear()
bet_fa.send_keys("0.00000005")

As for the your second problem - this is an input and the value you enter into it is kept inside the value attribute, not the text. Use get_attribute() method:

browser.find_element_by_xpath("//input[contains(@id,'betFa')]").get_attribute('value')

来源：https://stackoverflow.com/questions/28346240/selenium-not-setting-input-field-value