fix: 微信登录补充保存username和role

node_modules/licia/sample.js

@@ -0,0 +1,18 @@
+var isArrLike = require('./isArrLike');
+var clone = require('./clone');
+var values = require('./values');
+var random = require('./random');
+var swap = require('./swap');
+exports = function(obj, n) {
+    var sample = isArrLike(obj) ? clone(obj) : values(obj);
+    var len = sample.length;
+    n = Math.max(Math.min(n, len), 0);
+    var last = len - 1;
+    for (var i = 0; i < n; i++) {
+        var rand = random(i, last);
+        swap(sample, i, rand);
+    }
+    return sample.slice(0, n);
+};
+
+module.exports = exports;