这与使用空字符串不同,空字符串表示属性存在但是没有值。
This is different from using the empty string, which indicates that the property exists but has no value.
标题(title),简短的、人类可读的记录主体行;允许使用空字符串(用空的标题元素表示,如)。
A title, which expresses a short, human readable subject line for the entry, and can be a blank string (represented by an empty title element, such as).
scope:搜索范围;空字符串表示搜索所有可用的索引页。
Scope: The scope to search; an empty string means search all available indexes.
空字符串:没有字符的字符串,长度为0,用两个单引号表示。
A string with no characters and length 0, represented by two quotation marks.
给定一个非空字符串,包含一组乱序的英文字母表示的数字0-9,按递增序输出这些数字。
Given a non-empty string containing an out-of-order English representation of digits 0-9, output the digits in ascending order.
给定一个非空字符串,包含一组乱序的英文字母表示的数字0-9,按递增序输出这些数字。
Given a non-empty string containing an out-of-order English representation of digits 0-9, output the digits in ascending order.
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