blaire
👩🏻💻ブレア🥣
Job survey of data analysts in Singapore
sparkSQL history, use and optimize
most tasks are executed very fast, but some tasks are extremely slow.
decorator 由于函数也是一个对象,而且函数对象可以被赋值给变量,所以,通过变量也能调用该函数。
getattr(object, name[,default])
获取对象object的属性或者方法,如果存在打印出来,如果不存在,打印出默认值,默认值可选.