query_string = urlencode(params) print(query_string) # 输出: keyword=python+%E6%95%99%E7%A8%8B&page=2 安全性: 查询字符串会暴露在 URL 中,不要在 GET 请求中传递敏感信息(如密码、令牌等)。 如果必须传递敏感信息,建议使用 HTTPS 加密传输。 长度限制: 不同浏览器和服务器对 URL 长度的限制不同(...
return a + b class TestAddFunction(unittest.TestCase): def test_add_positive_numbers(self): self.assertEqual(add(2, 3), 5) def test_add_negative_numbers(self): self.assertEqual(add(-2, -3), -5) def test_add_zero(self): self.assertEqual(add(5, 0), 5) if __name__ == '_...
With three arguments, return a new type object. This is essentially a dynamic form of the class statement. The name string is the class name and becomes thenameattribute. The bases tuple contains the base classes and becomes thebasesattribute; if empty, object, the ultimate base of all class...
create external table name_analysis ( name string, idcard string, src string, ) PARTITIONED BY (source string) ROW FORMAT DELIMITED FIELDS TERMINATED BY ','; 调用脚本 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #!/bin/bash echo "start running the Abstract Name analysis working ..."...
文档字符串是多行注释,出现在模块的py源代码文件顶部,或直接跟随class或def语句。它们提供了关于正在定义的模块、类、函数或方法的文档。自动化文档生成器工具使用这些文档字符串来生成外部文档文件,例如帮助文件或网页。 文档字符串必须使用三重引号的多行注释,而不是以哈希符号#开头的单行注释。文档字符串应该总是使...
con = cx_Oracle.connect('pythonhol', 'welcome', '127.0.0.1:/orcl:pooled', cclass = "HOL", purity = cx_Oracle.ATTR_PURITY_SELF) print con.version con.close() 该脚本与 connect.py 非常类似,但连接字符串后面添加了“:pooled”。还向 connect() 方法中传递了一个连接类“HOL”,并且将该连...
How to get a variable name as a string in PHP? How to get a function name as a string in Python? Get global variable dynamically by name string in JavaScript? How to add a property to a JavaScript object using a variable as the name? Get the class name of an object as a string ...
getlo – build a large object from given oid [LO] N 大对象相关操作。 loimport – import a file to a large object [LO] N 大对象相关操作。 Object attributes Y - The DB wrapper class Initialization Y - pkey – return the primary key of a table Y - get_databases – get list of dat...
def singleton(cls): """Make a class a Singleton class (only one instance)""" @functools.wraps(cls) def wrapper_singleton(*args, **kwargs): if wrapper_singleton.instance is None: wrapper_singleton.instance = cls(*args, **kwargs) return wrapper_singleton.instance wrapper_singleton.instance ...
dfsql_query = RxSqlServerData(connection_string=connection_string, sql_query ="select * from iris_data") df = rx_import(sql_query) scatter_matrix(df)# return bytestream of image created by scatter_matrixbuf = io.BytesIO() plt.savefig(buf, format="png") buf.seek(0)returnbuf.getvalue(...