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...
input_file = args.INPUT_FILE output_file = args.OUTPUT_FILEifargs.hash: ha = args.hash_algorithmprint("File hashing enabled with {} algorithm".format(ha))ifnotargs.log:print("Log file not defined. Will write to stdout") 当组合成一个脚本并在命令行中使用-h参数执行时,上述代码将提供以下...
python-3.x 检查JSON文件中是否存在子键您可以使用try-except方法（参见处理异常文档）：
``` # Python script to check the status of a website import requests def check_website_status(url): response = requests.get(url) if response.status_code == 200: # Your code here to handle a successful response else: # Your code here to handle an unsuccessful response ``` 说明: 此...
for i in range(len(line)): print("对IP: %s 执行"%line[i].strip('\n')) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ssh.connect(hostname=line[i].strip('\n'),port=port,username=user,password=passwd)stdin,stdout,stderr=ssh.exec_command(cmd)result=stdout.read()ifnot result:re...
除了使用in关键字外,我们还可以使用values()方法来取出字典中的所有值,然后再进行判断。示例代码如下: 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 the dictionary.')else:print(f'Th...
```# Python script to download images in bulk from a websiteimport requestsdef download_images(url, save_directory):response = requests.get(url)if response.status_code == 200:images = response.json() # Assuming the API returns...
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...
app=Flask(__name__)app.config['SECRET_KEY']='mysecretkey'classUserForm(FlaskForm):name=StringField('Name',validators=[DataRequired()])email=StringField('Email',validators=[DataRequired()])submit=SubmitField('Submit')@app.route('/',methods=['GET','POST'])defindex():form=UserForm()ifform...