Question

正则表达式截取两个指定字符串之间的内容？

原字串：{"value":["abcdefghij"],"type":"normal","state":[{"error":"0","result":"true"]}

我现在只想要，第一个value后面中括号之间的字符串（不包括引号），我之前用的
string pattern="\"value\":\\[\"(?<result>.*)\"\\]";
如果后面没有state字段，就可以截取到想要的字串，如果有state就直接截取到最后一个中括号前了，怎么指定最近的那个？

Answer 1

正则表达式 "value":\["(.*?)"\]

然后取第一个分组就好了，加个？是懒惰匹配，尽量匹配少的字符

Answer 2

这段字符串，需要提取 "MEMBERID":"24912496","SHOPTYPE" 中间的数字 24912496

两个特定字符串带有符号的；例如PROMOTEDTYPE":"260","MEMBERID":"24912496","SHOPTYPE":"2","EXLEVEL":"15"，"PROMOTEDTYPE":"260","MEMBERID":"78912496","SHOPTYPE":"2","EXLEVEL":"15"，"PROMOTEDTYPE":"260","EXMEMBERID":"28912496","SHOPTYPE":"2","EXLEVEL":"15"，"PROMOTEDTYPE":"260","MEMBERID":"74122906","SHOPTYPE":"2","EXLEVEL":"15"。