The last set of characters is the excluded set. It is made up of all ASCII control characters, the space character as well the following characters (known as delimiters)
最后一组的字符集是例外字符集。它是由所有的ASCII控制字符组成，包含空格字符以及下列字符（称为分隔符）
ASCII device control characters were originally designed to control hardware devices like printers and tape drives. These characters have nothing to do inside any HTML document.
ASCII设备控制字符最初是用于控制硬件设备的，如：打印机、录音设备。这个字符不属于HTML文档。
ASCII device control characters were originally designed to control hardware devices like printers and tape drives. These characters have nothing to do inside any HTML document.
ASCII设备控制字符最初是用于控制硬件设备的，如：打印机、录音设备。这个字符不属于HTML文档。
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