| 1. | Is a zero length string or contains only spaces
为零长度字符串或只包含空格。 |
| 2. | Null is also different from a zero - length string
Null也不同于零长度字符串。 |
| 3. | Is a zero - length string or contains an invalid value
为零长度字符串或包含无效值。 |
| 4. | Which is sometimes referred to as a null string
) ，零长度字符串有时也称为空字符串。 |
| 5. | If a zero - length string is specified for
指定了零长度字符串，则返回当前的 |
| 6. | A blank string specifies a valid zero - length password
空字符串( " )指定有效的零长度密码。 |
| 7. | Is a zero - length string , or if it does not appear anywhere in
为零长度字符串，或如果它不在 |
| 8. | Function returns a zero - length string
函数将返回零长度字符串( " ) 。 |
| 9. | Is also not the same as a zero - length string
也与零长度字符串不同( |
| 10. | Instance with a zero length address
返回一个具有零长度地址的新 |
