摘要: Python中对于对象的赋值都是引用,而不是拷贝对象(Assignment statements in Python do not copy objects, they create bindings between a target and an object.)。对于可变对象来说,当一个改变的时 阅读全文
posted @ 2016-06-21 15:40 wswang 阅读(482) 评论(1) 推荐(0)