Strings are initialized to null, not empty string.

String是被初始化为null, 不是空字符.

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Cannot rename web name to empty string.

无法重命名网站名称以清空字符串.

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Note: Separator cannot be an empty string.

注意:分 割符不可以是空字符串.

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The isbn member is implicitly initialized by the string default constructor as an empty string.

isbn成员由string的默认构造函数隐式初始化为空串.

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UDDI version 1.0 required that this value be an empty string bounded by quotes.

UDDI规范 1.0版要求这个字段的值应当是包含双引号的空字符串.

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The username cannot be an empty string or a string containing only spaces.

用户名不能为空字符串或只包含空格的字符串.

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Returns an empty string if the character sequence is not a valid collating element.

如果字符序列不是有效的对照元素则返回空字符串.

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