摘要：
C int arr[5]; brackets must follow the identifier, definition of variable with array type needs an explicit size of an initializer 阅读全文
摘要：
slice, map即使为nil打印格式和空元素的情况一样, chan,func,interface,pointer为nil时,打印<nil> 当chan,func,pointer赋值后,都打印地址, interface赋值后,永远打印其dynamic value的格式 package main i 阅读全文