让unisocket通用化；把showToast(...)集成在 cToast库里

unisocket/unisocket.js

@@ -5,11 +5,11 @@ const my = {
 }
 
 module.exports={
-  initSocket(){
-    if (!my.socket || my.socket.readyState!==my.socket.OPEN && getApp()._SS.nodeHost) {
+  initSocket(url){
+    if (!my.socket || my.socket.readyState!==my.socket.OPEN && typeof(url)==='string') {
       console.log('WebSocket connecting...')
       my.socket = uni.connectSocket({
-        url: getApp()._SS.nodeHost.replace(/^http/, 'ws'),
+        url: url.replace(/^http/, 'ws'),
         complete: ()=>{}
       })
       my.socket.onOpen((res)=>{