WebElement e = (new WebDriverWait( driver, 10)) .until( new ExpectedCondition< WebElement>(){ //等10秒直到找到id元素 @Override public WebElement apply( WebDriver d) { return d.findElement( ("id locator")); } } ); 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. (2)WebDriver会进行一个隐...
List comprehension offers a concise way to create a new list based on the values of an existing list. Suppose we have a list of numbers and we desire to create a new list containing the double value of each element in the list. numbers = [1,2,3,4] # list comprehension to create ne...
price in products: # A if price not in unique_price_list: #B unique_price_list.append(price) return len(unique_price_list) products = [ (143121312, 100), (432314553, 30), (32421912367, 150), (937153201, 30) ] print('number of unique price is: {}'.format(find_unique_price...
8. 寻找嵌套列表的最大值 (python find max value in nested list) 9. 找到列表中的众数 (python find mode in list) 10. 列表按照某个规则排序 (python sort a list according to an regulation) 11. 列表里面元素所有是否满足某一个条件 (python check if all element of a list matches a condition) ...
('More') Python 同样支持 ternary conditional operator: a if condition else b 也可以使用 Tuple 来实现类似的效果:test 需要返回 True 或者 False (falseValue, trueValue)[test] 更安全的做法是进行强制判断 (falseValue, trueValue)[test == True] 或者使用 bool 类型转换函数 (falseValue, trueValue)[...
later iterations) of the word), and the second element is an integer representing the frequency of the word in the list. Returns: None '''pair_frequencies =self.find_pair_frequencies(corpus) most_frequent_pair =max(pair_frequencies, key=pair_frequencies.get)self.merge_rules.append(most_freque...
from datavalve import DataValve # 创建DataValve实例,并设置条件过滤函数 valve = DataValve(condition=lambda x: x['value'] > 10) # 处理数据前进行条件过滤 for data in large_data_set: if valve.test(data): # 检查数据是否符合条件 process_data(data) 异常处理 DataValve提供了异常处理机制,可以确...
Step 1. Locate and Interact with Navigation Links Example: Clicking the “Downloads” Link To click the “Downloads” link, you can use the.find_element_by_link_text()method, but here’s how to use other locators to achieve the same, example by usingfind_element_by_xpath: ...
可以使用list来存储range在其他数据结构中生成的所有整数,默认的迭代器形式通常是你想要的。虽然range可以产生任意大的数,但任意时刻耗用的内存却很小。 三元表达式 Python中的三元表达式可以将if-else语句放到一行里。语法如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 value = true-expr if condition el...
name_Maxlen=len(i[0])#print('name_Maxlen={}'.format(name_Maxlen))#print('out_lines_num_int={}'.format(out_lines_num_int))foriintemp_list:#目前只有两列信息,名称和路径,后续需要的话再加即可key_words_str =re.findall(regex_str,i[0],re.I)[0] ...