x=345678 y=23456 z=1234 m=x-y n=m-z print("%10d",%x) print("%2c%8d",%("-",y)) print("%10s",%"----------") print("10d",%m) print("%2c%8d",%("-",%z)) print("%10s",%"----------") print("10d",%n)
不用加逗号