现有一个文本文件a.txt
里面的内容假设是这样的
06/06/01 13:01:47.22: 0 frBOS:96988::10.168.2.214:294:290:msg0200,4026740000008824,301000,,,,#,F2:4026740000008824,F3:301000,F7:1008155041,F11:076365,F12:155041,F13:1008,F15:1008,F18:6011,F22:021,F25:02,F32:01021000,F35[4026740000008824=0902],F37:010210076365,F41:11111111,F42:123456789012345,F43:华联商厦                                ,F49:156,F52:5E9F2FEA17B7CE733130303030303030,F121:51100000203112900   ,B:e23a44c1b8e098000000000010000081,*,*DZNWSBXF"BXN)BXM9@?]Z ULCN[N[N[NKN[LZBHV/BXF-C(^+BXN+BXN#@XF/B(N*BXN+BHN+S@XJ.CHN/BHN,C8B-CHJ.CHN/BHJ+BX.*BXN#C8N*BHN)BHN)BXV+@XN*BXF*BXN+BX.+SBHN)BHN+BXB,CXN)C8R/BXN+BXN+@X.)CX:+@HN)BHN*BXN+BXN)CHF+BXN+BXN+BXN*SBXF*BXN,C8B-CHJ*BHJ*BHJ*BHF(CXZ-C(."BXJ)B(^. !%Z$7)W='B;FYN;FYN;FYN;SFYN;FYN;FYN;FYN;FYN;FYN;FYN;FXJ.C>4DE%&L#'7(BHN+BXN+BXN+BXN+BXN+BXN#GBXB*BHF"BXN+B8N.BHJ+BXN+BXF+B(J*B8*+BYN;FXCZB/Z)@X*,`
06/06/01 13:01:47.22: 1 frBOS:39152:A1811::290:290:msg0200,4026740000008824,301000,,,,#,F2:4026740000008824,F3:301000,F7:1008155041,F11:076365,F12:155041,F13:1008,F15:1008,F18:6011,F22:021,F25:02,F32:01021000,F35[4026740000008824=0902],F37:010210076365,F41:11111111,F42:123456789012345,F43:华联商厦                                ,F49:156,F52:5E9F2FEA17B7CE733130303030303030,F121:51100000203112900   ,B:e23a44c1b8e098000000000010000081,*,*DZNWSBXF+BUF!_WH#6R.[N[N[NZN[NSJ*C8^+B8V,CXN+BXN+BX.#B8^(BXJ+BXN*BXN#BHZ.SBX^*BXR-B(V.BHZ.BX^*BHN+@XJ+BX.-BXJ*BXF*BXF+C8N#BXJ+B8J+BXN+@XN*BXF*SBXN+B(R/BXF-C(^+BXN+BXN#@XF/AHN"BXF*BXJ+BXN+BXF.B8N+BXN+BXN+BXJ+B8J+SBXR-B(V.BHJ*BHJ*BHJ*B8B/CHV,@X*+BHF(CXX`$7H1<G=T>)N;FYN;FYN;FYN;FYN;SFYN;FYN;FYN;FYN;FYN;FYN;BHZ-Y2244:P,=<B*BXN+BXN+BXN+BXN+BXN+BX.+B(J*CB8*+BXN)BXZ*BHN+BXN+B8N(BHJ)@HN+FYN;B/J(_HF#@HR+`
06/06/01 13:01:47.62: 1 toBOS:36842:FFFFF::312:304:msg0210,4026740000008824,301000,,,00,#,F2:4026740000008824,F3:301000,F7:1008155041,F11:076365,F12:155041,F13:1008,F14:0000,F15:1008,F18:6011,F25:02,F32:01021000,F37:010210076365,F39:00,F41:11111111,F42:123456789012345,F49:156,F54:3001156C0000000511653002156C0000008988353003156C000000150000,F121:51100000203112900   ,B:e23e40818ac084000000000010000081,*,*DZNWSBXB+CXN)BHM9A?LZ,7L_N[N[N[NKN[LZBHV/BXF-C(^+BXN+BXN#@XF/B(N*BXN+BHN+S@XJ.CHN/BHN,C8B-CHJ.CHN/BHJ+BX.+BXN+BHN+@XV+BHJ+B8N#BXJ+B8J+BXN+@XN*SBXF*BXN+BXJ+B8J+BXR-B(V.BXN*BHJ*BHJ*BHJ)B(^.C8R#@HN*B8B/CHJ.C8N-BXB+SBXJ*CHWXBXN+BXN+BXZ*BHV.B(N+B8J.C?B+BXN+BXN#@H.#B(Z(BXN(BHZ-^(N+BXN+SBXJ.BXN+BXN#BXB*BHF"BXN+B8N.BHJ+BXN+BXF+B(J*B8*+BYN;FXCZB/Z)@X*,BXN+SBXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+BXN+&BXN[N[N[`
我怎么读取文件并截取第2行的frBOS   msg0200   4026740000008824   301000的字段并导入数据库中.