- 我们常见的字段类型:有符号的:int,int8,int16,int32,int64;无符号的:uint8,uint16,uint32,uint64;其中int跟具体机器环境有关,表示32位或者64位有符号整型
- 取值范围:
- int32: -2147483648~2147483647
- int64: -9223372036854775808~9223372036854775807
- uint32: 0~4294967295
- uint64: 0~18446744073709551615
- 一般如果不太关心取值范围的话,直接用int类型就行
- 如果求严谨就可以使用具体的位数类型,有一些常见的业务场景,我们一般约定
- 时间戳用int64或者uint64,如果用uint32存时间戳,最大时间为:2106-02-07 14:28:15
- 统计性质的变量,如果不能为负最好用uint32,一些json库(jsonpb)会把uint64序列化成string,为了避免这种情况最好是用uint32
文章来源:智云一二三科技
文章标题:golang中数字字段的类型约定
文章地址:https://www.zhihuclub.com/109.shtml
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