1 String s="b2 + b1"; 2 Process child = Runtime.getRuntime().exec("C:\eclipse-workspace\beam\exe\bandmath\BandMath.exe"+" ""+s+"");
当java传递有空格的代码时s是有空格的参数 需要将" "+s+" "改为
+" ""+s+""这样才不会将s里面的空格参数识别为参数之间的空格
1 public class cal { 2 public static void main(String[] args) 3 { 4 String s="B1 + B2"; 5 String s1="B3+B4"; 6 7 System.out.println(s1+" "+s); 8 System.out.println(s1+" ""+s+"" "); 9 } 10 }
输出:
B3+B4 B1 + B2
B3+B4 "B1 + B2"