一、数据类型转换(自动转换(隐式转换)、手动转换(强制转换)) 1、自动转换(隐式转换) (1)特点: 小 -> 大(2)特殊:long -> float (3)计算时特别注意:byte、short、char计算时,默认转换为int再计算 2、手动转换(强制转换) (1)特点: 大 -> 小(2)变量类型 变量名称 = (目标转换类型)变量值; (3)数字...
Python regular expression question - sub string but not prepended with :) I'm trying to sub foo to bar, but only if it's not prepended with ie. /. So... foobar should change to barbar, but /foobar not. I've tried to add [^/] at beginning of my re, but that doesn't work ...
The internal physical representation of the objectschangeswhen we do this. Sometimes bits are simply added or subtracted; other times, as in the float-to-int conversion, the object is completely rearranged. Casting awayconstness.Let's say you want to assign to a const object. This of course ...