说明（因为Java中java Application的参数都是默认的字符型的数据，所以需要强制类型转换这一步骤）
设计思想：
向系统里输入若干个参数，计算出参数个数，利用for语句计算出参数的和。（程序中需要进行强制类型转换，因为java Application中的数据是字符型的，不能进行运算），最后输出参数的和
流程图：
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" alt="" />
程序源代码：
package demo;
public class CommandParameter {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("参数个数:"+ args.length);
int m=0;
for(String arg : args)
{
m=m+Integer.parseInt(arg);
}
System.out.println(m);
}
}