【发布时间】：2016-01-01 10:19:47
【问题描述】：
我正在尝试使用正则表达式在下面显示的 JSON 数据中获取第一次出现的 InvoiceItemID：
这是我目前拥有的正则表达式字符串：
\d{6}(?=","Location":"ARN:190801210003100)
当前的正则表达式字符串返回两个匹配项，但我只对第一次出现/匹配感兴趣。我知道我需要做的是使正则表达式不贪心，这通常涉及使用类似这样的东西：(.*?) 但我不知道在哪里实现这个非贪心代码。任何帮助，将不胜感激。谢谢。
如果需要，这里是一些用于测试目的的原始数据：
{"ClientRef":"","Date":"2015-09-29 10:02:51 AM","InvoiceID":"451393","InvoiceItemID":"495340","Location":"ARN:193602013349538<br\/>16 LEIGHLAND DR , CITY OF MARKHAM, ON, L3R 7R4","ReportID":"268172,","Type":"ICI Commercial \/ Industrial Report"},{"ClientRef":"","Date":"2015-09-28 8:39:41 PM","InvoiceID":"451035","InvoiceItemID":"494939","Location":"ARN:190801210003100<br\/>2250 SHEPPARD AVE W, CITY OF TORONTO, ON, M9M 1L7","ReportID":"267810,","Type":"Basic Report"},{"ClientRef":"","Date":"2015-09-28 8:39:20 PM","InvoiceID":"451034","InvoiceItemID":"494938","Location":"ARN:190801210003100<br\/>2250 SHEPPARD AVE W, CITY OF TORONTO, ON, M9M 1L7","ReportID":"267809,","Type":"ICI Commercial \/ Industrial Report"},{"ClientRef":"","Date":"2015-09-28 2:59:03 PM","InvoiceID":"450515","InvoiceItemID":"494348","Location":"ARN:240201011110900<br\/>26-34 PLAINS RD E, BURLINGTON CITY, ON, L7T 2B9","ReportID":"267272,","Type":"ICI Commercial \/ Industrial Report"}
【问题讨论】：
标签： regex regex-greedy