大约有 39,100 项符合查询结果（耗时：0.0303秒） [XML]
Regular expression to limit number of characters to 10
... options are:
{3} Exactly 3 occurrences;
{6,} At least 6 occurrences;
{2,5} 2 to 5 occurrences.
See the regular expression reference.
Your expression had a + after the closing curly brace, hence the error.
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