When the element, whose index we are trying to find, occurs multiple times in the list,index()method returns the index of first match and ignores the other occurrences. In the following program, we take a list where element'mango'occurs twice in the list. We find the index of the elemen...
IE方法:document.frames['myFrame'].document.getElementById('test').value; 火狐方法:document.getElementById('myFrame').contentWindow.document.getElementById('test').value; IE.火狐方法: 复制代码 代码如下: function getValue(){ var tmp = ''; if(document.frames){ tmp += 'ie 1. 2. 3. 4....
0.99,100)forlambda_reginlambda_reg_values:#For each value of lambda, compute build model and compute performance for lambda_reg in lambda_reg_values:X_train = np.column_stack([np.power(x_train,i)foriinrange(0,degree)])
def calc_local_price(foreign_amount, from_country): if from_country == "United States": exchange_rate = get_exchange_rate("USD", "EUR") elif from_country == "China": exchange_rate = get_exchange_rate("CHN", "EUR") elif from_country == "Germany": exchange_rate = get_exchange_rat...
company_num = div.find_element_by_css_selector('.company-tags-box span:last-of-type').text href = div.find_element_by_css_selector('.job-detail-box a').get_attribute('href') dit = { '职位': title, '城市': city, '薪资': salary, ...
response = requests.get(url, cookies) 将cookie字符串转换为cookies参数所需的字典:cookies_dict = {cookie.split('=')[0]:cookie.split('=')[-1] for cookie in cookies_str.split('; ')} 注意:cookie一般是有过期时间的,一旦过期需要重新获取...
string.index(str, beg=0, end=len(string))跟find()方法一样,只不过如果str不在 string中会报一个异常. 代码语言:javascript 代码运行次数:0 运行 AI代码解释 >>>mystr.index("how")12>>>mystr.index("how",20,30)Traceback(most recent call last):File"<stdin>",line1,in<module>ValueError:subst...
In[1]:an_apple=27In[2]:an_example=42In[3]:an<Tab>an_apple an_example any 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # 使用Tab补充变量的方法 In[3]:b=[1,2,3]In[4]:b.<Tab>append()count()insert()reverse()clear()extend()pop()sort()copy()index()remove() ...
Python sort list by element index A Python list can have nested iterables. In such cases, we can choose the elements which should be sorted. sort_elem_idx.py #!/usr/bin/python vals = [(4, 0), (0, -2), (3, 5), (1, 1), (-1, 3)] ...
uri = "/dns/dnsNameResolution" root_elem = etree.Element('dnsNameResolution') etree.SubElement(root_elem, 'host').text = host etree.SubElement(root_elem, 'addrType').text = addr_type req_data = etree.tostring(root_elem, "UTF-8") ret, _, rsp_data = ops_conn.get(uri, req_data)...