C语言 空格键是字符吗？
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Is spacebar a character?
提问by EngGenie
Consider this line of text:
考虑这行文本：
First line of text.
第一行文字。
If a character array stringis used to load the first TEN characters in the array it will output as:
如果使用字符数组string加载数组中的前十个字符，它将输出为：
First lin'##代码##'
Firstcontains 5 letters, lincontains 3 letters. Where are the other two characters being used?
First包含5个字母，lin包含3个字母。其他两个字符在哪里使用？
Is \0considered two characters?
被\0认为是两个字符？
Or is the space between the words considered a character, thus '\0` is one character?
或者单词之间的空格被认为是一个字符，因此 '\0` 是一个字符？
回答by Vladimir F
Yes, space is a character. In ASCII encoding it has code number 32.
是的，空间是一个字符。在 ASCII 编码中，它的代码编号为 32。
回答by Jonathan Leffler
The space between the two words has ASCII code 0x20 (0408, or 3210); it occupies one byte.
两个字之间的空格有ASCII码0x20（040 8，或32 10）；它占用一个字节。
The null at the end of the string, ASCII code 0x00 (0 in both octal and decimal) occupies the other byte.
字符串末尾的空值，ASCII 码 0x00（八进制和十进制均为 0）占据另一个字节。
Note that the space bar is simply the key on the keyboard that generates a space character when typed.
请注意，空格键只是键盘上在键入时生成空格字符的键。
回答by sampson-chen
'\0'is the null-terminator, it is literally the value zero in all implementations.
'\0'是空终止符，在所有实现中它实际上是零值。
'\0'is considered a single character because the backslash \means to escape a character. '\0'and '0'thus are both single characters, but mean very different things.
'\0'被视为单个字符，因为反斜杠\意味着转义字符。'\0'并'0'因此都是单个字符，但意思完全不同的事情。
Note that space is represented by a different ascii value.
请注意，空格由不同的ascii 值表示。
