求高手解决问题左右关联

shoujilx

"Body=[{\"channel\":\"/meta/subscribe\",\"subscription\":\"/kfonline/chat/1311173f58cf47a59f0c7c6c5b2a9adc\",\"id\":\"2\",\"clientId\":\"z65s5byuudnkt1dcak5wjat1ee\"},{\"channel\":\"/kfonline/chat/1311173f58cf47a59f0c7c6c5b2a9adc\",\"data\":{\"room\":\"/kfonline/chat/1311173f58cf47a59f0c7c6c5b2a9adc\",\"chatBasicId\":\"894\",\"companyId\":\"de31561457d14ba8b0ed23e17d300579\",\"kefuId\":\"81cd095910ec4a8f95a4aa0ec5e379eb\",\"joinerId\":\"1311173f58cf47a59f0c7c6c5b2a9adc\",\"joinerName\":\"1000073\","
                "\"connectionExit\":\"no\",\"scope\":\"systemInfo\",\"action\":\"regist\",\"chatMsg\":\"1000073\\u5df2\\u7ecf\\u52a0\\u5165\"},\"id\":\"3\",\"clientId\":\"z65s5byuudnkt1dcak5wjat1ee\"}]",
                LAST);
红色这个值是变化，怎么用联联取这个值 或

msnshow

左边界用这个啊，

clientId\":\"

右边界用 \就行了