import java.util.*;
public class test {
static Map<String,String>map=new HashMap<String,String>();
map.put("niha","niai"); //这一行出现语法错误
public static void main(String[]ars){
//定义在函数体内部就可以编译通过
Map<String,String>map=new HashMap<String,String>();
map.put("niha","nian");
}
}