ascii字符

• The return value is a set of printable 34 ascii characters of the form
  返回值是一组包含34个可打印的ascii字符的组合，其格式如下：
• Matches an ascii character using hexadecimal representation exactly two digits
  使用十六进制表示形式（恰好两位）与ascii字符匹配。
• For example , you may want to allow only ascii characters in a particular text box
  例如，您可能想要在特定文本框中只允许ascii字符。
• The maximum character length will be reduced when non - ascii characters are indexed
  当对非ascii字符建立索引时，最大字符长度将减少。
• And users will only be able to enter ascii characters for that particular text box
  ，这样，用户将只能在该特定文本框中输入ascii字符。
• Only ascii characters between 224 and 251 , and punctuation characters will be affected
  只对位于224和251之间的ascii字符以及标点字符起作用。
• An ascii character will take 1 byte , and a non - ascii character can take from 2 to 4 bytes
  一个ascii字符占用1字节，一个非ascii字符可以占用2到4字节。
• For instance , urls that contain non - ascii characters were a nagging problem on the web for a long time
  比如，包含非ascii字符的url是长期困扰web的一个问题。
• A url containing non - ascii characters that worked on a pc failed when loaded on a mac , and vice versa
  在pc机上工作的包含非ascii字符的url不能用于mac ，反之亦然。
• Provides comparisons of coding terms and concepts in different programming languages , and ascii character codes
  提供不同编程语言的编码术语和概念的比较以及ascii字符代码。