To understand what these pieces mean, consider an optical character recognition system that scans glyphs printed on paper and converts them into three-digit decimal Numbers.
要理解这些部分的具体含义，请考虑一个光学字符识别系统，该系统扫描纸张上的符号并将它们转换为3位的十进制数。
Gets the decimal digit value of the numeric character at the specified index of the specified string.
获取位于指定字符串的指定索引位置的数值型字符的十进制数字值。
A word character is any letter, decimal digit, or punctuation connector such as an underscore.
任何字母、十进制的数字或标点符号连接器如下划线的单词字符。
Gets the decimal digit value of a numeric Unicode character.
获取指定数值型字符的十进制数字值。
Indicates whether the character at the specified position in a specified string is categorized as a decimal digit.
指示指定的字串中指定位置处的字元是否分类为十进位数字。
Indicates whether the character at the specified position in a specified string is categorized as a letter or a decimal digit.
表示指定之字串中，位于指定位置的字元是否分类为字母或十进位数字。
Indicates whether the character at the specified position in a specified string is categorized as a letter or a decimal digit.
表示指定之字串中，位于指定位置的字元是否分类为字母或十进位数字。
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