modified: README.md

new file:   client/dnssender.py
	new file:   client/main.py
	new file:   database/dns.db
	new file:   database/initdb.py
	new file:   server/main.py
	new file:   server/xiaomiandns.py

client/dnssender.py

@@ -0,0 +1,22 @@
+import dns.resolver
+
+
+def resolver(domain):
+    # 构造 DNS 查询请求
+    qtype = 'A'
+
+    # 发送 DNS 查询请求
+    resolver = dns.resolver.Resolver()
+    resolver.nameservers = ["127.0.0.1"]
+
+    try:
+        ip = resolver.resolve(domain, qtype)[0]
+        return ip
+    except dns.resolver.NXDOMAIN:
+        print("can't find IP")
+
+
+if __name__ = "__main__":
+    domain = 'mamahaha.work'
+    ip = resolver(domain)
+    print(ip)