添加proxy快捷函数，添加controller提示信息

activate

@@ -0,0 +1,12 @@
+echo "=> Mihomo proxy functions activated"
+function setproxy() {
+    local host=${1:-127.0.0.1} # 更改IP为您的代理软件监听IP, 默认127.0.0.1
+    local port=${2:-7890}      # 更改端口为您的代理软件监听端口, 默认7890
+    export http_proxy=http://$host:$port && export https_proxy=$http_proxy
+    export no_proxy=localhost,127.0.0.1,::1,.localdomain
+    echo "- You've set the network proxy! Info: $http_proxy"
+}
+function unsetproxy() {
+    unset http_proxy && unset https_proxy && unset no_proxy
+    echo "- You've unset the network proxy!"
+}