java运行tcl脚本

Question

public class dddd {

/**
 * @param args
 * @throws IOException 
 */
public static void main(String[] args) throws IOException {
    // TODO Auto-generated method stub
    Runtime run = Runtime.getRuntime();   
    Process pro = run.exec("cmd /c start tclsh85 e:dddd.tcl"); 
    //Process pro = run.exec("cmd /c start dir"); 
    //Process pro = run.exec("cmd /c ");
    BufferedReader br = new BufferedReader(new InputStreamReader(pro.getInputStream()));   
    String str = "";   
    br.readLine();
    while((str = br.readLine()) != null) {   
        System.out.println("str="+str);   
    }   
    br.close();   
    pro.destroy();   

}

}
运行这段代码怎么没输出，没有报异常，但在dos下有输出

Answer 1

ProcessBuilder builder = new ProcessBuilder("java","-cp","e:/","dddd");