ls_buf[2]=ls_buf[2]-0x30-(ls_buf[2]>'9')*7;
jg=ls_buf[2]*0x100000;
ls_buf[3]=ls_buf[3]-0x30-(ls_buf[3]>'9')*7;
jg+=ls_buf[3]*0x10000;
ls_buf[4]=ls_buf[4]-0x30-(ls_buf[4]>'9')*7;
jg+=ls_buf[4]*0x1000;
ls_buf[5]=ls_buf[5]-0x30-(ls_buf[5]>'9')*7;
jg+=ls_buf[5]*0x100;
ls_buf[6]=ls_buf[6]-0x30-(ls_buf[6]>'9')*7;
jg+=ls_buf[6]*0x10;
ls_buf[7]=ls_buf[7]-0x30-(ls_buf[7]>'9')*7;
jg+=ls_buf[7];
手工转换了