1. char 数据类型 定义:char 是一种固定长度的字符数据类型,在创建表时需要指定其长度,长度范围为 0 到 255 个字符。 存储方式:char 类型在存储时会按照指定的长度进行存储,如果实际字符长度小于指定长度,会使用空格填充。 代码语言:javascript 代码运行次数:0 CREATETABLEchar_example(idINTAUTO_INCREMENTPRIMARYKEY...
在Python中,布尔值类型被称为bool。 用法:可以直接将布尔值赋值给变量,也可以通过逻辑运算符(例如and、or、not)或比较运算符(例如==、!=、<、>等)来生成布尔值。 # 定义布尔值变量 is_true = True is_false = False # 通过逻辑运算生成布尔值 result_and = True and False # False result_or = True ...
英[tʃɑ:(r)] n.炭;烧焦之物;〔英俚〕茶;【鱼类】红点鲑 v.把…烧成炭;烧焦(木材表面);变焦黑;〔化〕碳化 网络资料型态-字元;手机充电器;品牌充电线 权威英汉双解 网络释义 char. 显示所有例句 v. — see also charred 1. [i][t]
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