nginx怎么配置目录别名phpmyadmin到localhost/phpmyadmin/

nginx如何配置 目录别名phpmyadmin 到 localhost/phpmyadmin/
需求要求
在nginx中实现 类似Apache的 alias功能，将目录 /phpmyadmin 指向 D:/wamp/apps/phpmyadmin4.1.14

#Apache写法
Alias /phpmyadmin "d:/wamp/apps/phpmyadmin4.1.14/"

自己写法

server {
	listen       80;
	server_name  localhost 127.0.0.1;
	root   d:/localhost;
	index  index.html index.htm index.php;			
	autoindex on; 
	autoindex_exact_size off;
	autoindex_localtime on;			

	location /phpmyadmin/ {
		alias D:/wamp/apps/phpmyadmin4.1.14;
		index index.php;
	}
	
	location ~ \.php$ {
		try_files $uri =404;
		fastcgi_pass   127.0.0.1:9000;
		fastcgi_index  index.php;
		fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
		include        fastcgi_params;    
	}
	
	#error_page  404              /404.html;

	# redirect server error pages to the static page /50x.html
	#
	
	error_page   500 502 503 504  /50x.html;
	location = /50x.html {
		root   html;
	}
	
	location ~ /\.(ht|svn|git) {
		deny all;
	}
}

结果 访问 http://localhost/phpmyadmin 提示 404 Not Found。

日志信息：

127.0.0.1 - - [10/Dec/2014:10:19:07 +0800] "GET /phpmyadmin HTTP/1.1" 404 142 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0" "-"
127.0.0.1 - - [10/Dec/2014:10:19:07 +0800] "GET /favicon.ico HTTP/1.1" 404 142 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0" "-"
127.0.0.1 - - [10/Dec/2014:10:19:07 +0800] "GET /phpmyadmin HTTP/1.1" 404 142 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0" "-"
127.0.0.1 - - [10/Dec/2014:10:19:08 +0800] "GET /favicon.ico HTTP/1.1" 404 142 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0" "-"

失败，如何才可以实现nginx 的alias 指向phpmyadmin目录（如果是所有的server一起指向更好）。

------解决思路----------------------
将phpmyadmin放在root 对应的根目录下。
------解决思路----------------------
参考下：http://down.chinaz.com/server/201111/1382_1.htm