parmfile='abc 123'
RunProgram programname "${parmfile}" -->传入abc 123
RunProgram programname '${parmfile}' -->传入${parmfile}
RunProgram programname ${parmfile} -->传入abc
parmfile='abc 123'
RunProgram programname "${parmfile}" -->传入abc 123
RunProgram programname '${parmfile}' -->传入${parmfile}
RunProgram programname ${parmfile} -->传入abc