sinat_37196107的博客

原文地址First be sure you have MongoDB and Node.js installed.Next install Mongoose from the command line using npm:$ npm install mongooseNow say we like fuzzy kittens and want to record every kitten we eve

Python各类数据类型的相互转换int(x [,base ]) 将x转换为一个整数long(x [,base ]) 将x转换为一个长整数float(x ) 将x转换到一个浮点数complex(real [,imag ]) 创建一个复数str(x ) 将对象 x 转换为字符串r