import json # 示例JSON字符串 json_str = '{"name": "Alice", "age": 30, "address": "123 Main St"}' # 一次性解析JSON字符串 data = json.loads(json_str) # 定义一个函数来检查key def check_key_in_json(json_data, key): if key in json_data: print(f"Key '{key}' exists in the...
'''# 将JSON字符串转换为Python字典data=json.loads(json_string)# 判断节点是否有值的函数defcheck_node(data,key):# 检查键是否在字典中ifkeyindata:value=data[key]# 判断值是否为空或零ifvalueisNoneor(isinstance(value,list)andlen(value)==0):returnFalsereturnTruereturnFalse# 示例:判断不同节点print...
它为网站提供返回图像URL数组的JSON API。然后,该脚本循环访问URL并下载图像,并将其保存到指定目录。 2.3自动提交表单 ``` # Python script to automate form submissions on a website import requests def submit_form(url, form_data): response = requests.post(url, data=form_data) if response.status_...
如果我们想要检查某个值是否存在于字典的值(value)中,可以通过values()方法将所有的值取出,然后再用in关键字进行判断。下面是一个示例: my_dict={'name':'Alice','age':25,'city':'New York'}value_to_check='Alice'ifvalue_to_checkinmy_dict.values():print(f'The value{value_to_check}exists in ...
json()fordateindate_need:foriteminresponse_json['data']:ifitem['scheduleDate']==date:ifitem[...
为此,我们必须通过使用以下if语句构建copy2()调用复制的文件的目标路径,以便在命令行提供目录时连接正确的路径: shutil.copy2(source, dest)ifos.path.isdir(dest): dest_file = os.path.join(dest, src_file_name)else: dest_file = dest 接下来,我们为pywin32库准备时间戳。我们使用os.path.getctime()方...
(url)if response.status_code == 200:images = response.json() # Assuming the API returns a JSON array of image URLsfor index, image_url in enumerate(images):image_response = requests.get(image_url)if image_response.status_cod...
importrequests,json response = requests.get("http://httpbin.org/get",timeout=5)# we then print out the http status_codeprint("HTTP Status Code: "+str(response.status_code))print(response.headers)ifresponse.status_code ==200: results = response.json()forresultinresults.items():print(resul...
(url) if response.status_code == 200: images = response.json() # Assuming the API returns a JSON array of image URLs for index, image_url in enumerate(images): image_response = requests.get(image_url) if image_response.status_code == 200: with open(f"{save_directory}/image_{index...
常见模块总结(os、sys、hashlib、json和pickle、re、time、random) 一、os---用于提供系统级别的操作 os.getcwd() 获取当前工作目录,即当前python脚本工作的目录路径<===>pwd 1. >>> import os >>> os.getcwd() '/root' >>> os.chdir("/mnt") >>...