数据反转译

服务端获取数据位字符串类型： "{\"rc\":0,\"rt\":4,\"svr\":181669432,\"lt\":1,\"full\":1,\"data\":{\"f43\":1320028,\"f44\":1320692,\"f45\":1315802,\"f46\":1317475,\"f47\":1663902656,\"f48\":\"-\",\"f49\":1663902656,\"f50\":213,\"f57\":\"NDX\",\"f58\":\"纳斯达克\",\"f59\":2,\"f60\":1312895,\"f85\":\"-\",\"f107\":100,\"f111\":0,\"f113\":\"-\",\"f114\":\"-\",\"f115\":\"-\",\"f116\":\"-\",\"f117\":\"-\",\"f127\":\"-\",\"f130\":1312895,\"f131\":\"-\",\"f132\":735,\"f133\":2119,\"f135\":\"-\",\"f136\":\"-\",\"f137\":\"-\",\"f138\":\"-\",\"f139\":\"-\",\"f140\":\"-\",\"f141\":\"-\",\"f142\":\"-\",\"f143\":\"-\",\"f144\":\"-\",\"f145\":\"-\",\"f146\":\"-\",\"f147\":\"-\",\"f148\":\"-\",\"f149\":\"-\",\"f152\":2,\"f161\":\"-\",\"f162\":\"-\",\"f164\":\"-\",\"f165\":\"-\",\"f167\":\"-\",\"f168\":\"-\",\"f169\":7133,\"f170\":54,\"f171\":37,\"f174\":1320692,\"f175\":1315802,\"f177\":0,\"f178\":\"-\",\"f181\":0,\"f182\":0,\"f198\":\"-\",\"f199\":\"-\",\"f260\":\"-\",\"f261\":\"-\",\"f288\":-1,\"f292\":2,\"f293\":\"-\",\"f294\":\"-\",\"f295\":\"-\",\"f21\":\"-\",\"f22\":\"-\",\"f23\":\"-\",\"f24\":\"-\",\"f25\":\"-\",\"f26\":\"-\",\"f27\":\"-\",\"f28\":\"-\",\"f29\":\"-\",\"f30\":\"-\",\"f31\":\"-\",\"f32\":\"-\",\"f33\":\"-\",\"f34\":\"-\",\"f35\":\"-\",\"f36\":\"-\",\"f37\":\"-\",\"f38\":\"-\",\"f39\":\"-\",\"f40\":\"-\",\"f19\":\"-\",\"f20\":\"-\",\"f17\":\"-\",\"f18\":\"-\",\"f15\":\"-\",\"f16\":\"-\",\"f13\":\"-\",\"f14\":\"-\",\"f11\":\"-\",\"f12\":\"-\",\"f9\":\"-\",\"f10\":\"-\",\"f7\":\"-\",\"f8\":\"-\",\"f5\":\"-\",\"f6\":\"-\",\"f3\":\"-\",\"f4\":\"-\",\"f1\":\"-\",\"f2\":\"-\",\"f31\":\"-\",\"f32\":\"-\",\"f33\":\"-\",\"f34\":\"-\",\"f35\":\"-\",\"f36\":\"-\",\"f37\":\"-\",\"f38\":\"-\",\"f39\":\"-\",\"f40\":\"-\",\"f19\":\"-\",\"f20\":\"-\",\"f17\":\"-\",\"f18\":\"-\",\"f15\":\"-\",\"f16\":\"-\",\"f13\":\"-\",\"f14\":\"-\",\"f11\":\"-\",\"f12\":\"-\"}"
怎么转换成json格式