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The character which when preceded by an escape character represents the start of a hexadecimal character constant.
前跟转义字符用于标识十六进制字符常量开始的字符。
youdao
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The character which when preceded by an escape character represents the start of a hexadecimal character constant.
前跟转义字符用于标识十六进制字符常量开始的字符。
youdao