console 改为实时日志

 //app.js
 // import log from 'utils/realTimeLog'
 
-//ascii 返回长度
-function ascLength(codeat){
-  let len=1
-  if(codeat>0x4000000){
-    len=6
-  }else if(codeat>0x200000){
-    len=5
-  }else if(codeat>65536){
-    len=4
-  }else if(codeat>2048){
-    len=3
-  }else{
-    len=2
+function str2ab(str) {
+  let strLen = str.length*2
+  var buf =new ArrayBuffer(strLen>5000?5000:strLen);
+  var bufView =new Uint16Array(buf);
+  for (var i = 0; i < buf.byteLength;i++) {
+    let asc=str.charCodeAt(i)
+    bufView[i] = asc;
   }
-  return len
+  return buf;
 }
-//简单计算字节长度
-String.getBlength = function (str) {
-  for (var i = str.length, n = 0; i--; ) {
-    n += ascLength(str.charCodeAt(i));
-  }
-  return n;
-}
-//按指定字节截取字符串
-String.cutByte = function(str,len,endstr){
-  var len = +len
-    ,endstr = typeof(endstr) == 'undefined' ? "..." : endstr.toString();
-  function n2(a){ var n = a / 2 | 0; return (n > 0 ? n : 1)} //用于二分法查找
-  if(!(str+"").length || !len || len<=0){return "";}
-  if(this.getBlength(str) <= len){return str;} //整个函数中最耗时的一个判断,欢迎优化
-  var lenS = len - this.getBlength(endstr)
-    ,_lenS = 0
-    , _strl = 0
-  while (_strl <= lenS){
-    var _lenS1 = n2(lenS -_strl)
-    _strl += this.getBlength(str.substr(_lenS,_lenS1))
-    _lenS += _lenS1
-  }
-  return str.substr(0,_lenS-1) + endstr
+function ab2str(buf) {
+  return String.fromCharCode.apply(null,new Uint16Array(buf));
 }
+
 if (wx.getRealtimeLogManager) {
   const logger = wx.getRealtimeLogManager()
   let consoleLog=console.log
@@ -53,7 +27,8 @@ if (wx.getRealtimeLogManager) {
         if(!str) return;
         params+=str
       })
-      logger.info(String.cutByte(params,5000));
+      let bs=str2ab(params)
+      logger.info(ab2str(bs).toString());
       success()
     })
   }