Name | Byte字节 | ||||||
Examples | // Declare variable ‘a’ of type byte byte a; // Assign 23 to ‘a’ a = 23; // Declare variable ‘b’ and assign it the value -128 byte b = -128; // Declare variable ‘c’ and assign it the sum of ‘a’ and ‘b’. // By default, when two bytes are added, they are converted // to an integer. To keep the answer as a byte, cast them // to a byte with the byte() conversion function byte c = byte(a + b); |
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Description 描述 |
Datatype for bytes, 8 bits of information storing numerical values from 127 to -128. Bytes are a convenient datatype for sending information to and from the serial port and for representing letters in a simpler format than the char datatype. The first time a variable is written, it must be declared with a statement expressing its datatype. Subsequent uses of this variable must not reference the datatype because Processing will think the variable is being declared again. 数据类型为字节, 8 位信息存储数值从127到-128。字节是一种方便的数据类型, 用于向串行端口发送信息, 并用于以比 char 数据类型更简单的格式表示字母。第一次写入变量时, 必须用表达其数据类型的语句声明它。此变量的后续使用不能引用该数据类型, 因为处理将认为该变量正在再次声明 |
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Syntax 语法 |
byte var byte var = value |
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Parameters 参数 |
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Related 相关 |
int float boolean |
- 本文固定链接: http://iprocessing.cn/2017/07/15/byte字节/
- 转载请注明: 卡萨布兰卡 于 Processing编程艺术 发表