diff --git a/README.md b/README.md
index 7a36238..55c552c 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,7 @@ compare('1.1.1', '1.1.1'); // 0
 compare('1.2.3', [1, 2, 3]); // 0
 compare('1.2', 2); // -1
 compare(3, [2, 3, 4]); // -1
+compare('1.0.1', '1'); // 1
 compare('1.1.', [1, 2, 3]); // Wrong Params.
 compare('.1.1', [1, 2, 3]); // Wrong Params.
 
diff --git a/src/index.js b/src/index.js
index dc73114..f75e04c 100644
--- a/src/index.js
+++ b/src/index.js
@@ -43,8 +43,8 @@ define(function (require) {
         var lenA = a.length;
         var lenB = b.length;
 
-        for (var i = 0; i < Math.min(lenA, lenB); i++) {
-            var t = compare(a[i], b[i]);
+        for (var i = 0; i < Math.max(lenA, lenB); i++) {
+            var t = compare(a[i] || 0, b[i] || 0);
 
             // 相同位置的数字不一致，则有大小结论
             if (t !== 0) {
@@ -52,17 +52,7 @@ define(function (require) {
             }
         }
 
-        if (lenA === lenB) {
-            return 0;
-        }
-
-        var tmp = lenA > lenB ? a : b;
-        for (var j = i; j < Math.max(lenA, lenB); j++) {
-            if (tmp[j] === 0) {
-                return 0;
-            }
-            return compare(lenA, lenB);
-        }
+        return 0;
     }
 
     /**
diff --git a/src/util.js b/src/util.js
index 569d0d7..b43fc34 100644
--- a/src/util.js
+++ b/src/util.js
@@ -34,6 +34,8 @@ define(function (require) {
             if (this.isString(param)) {
                 return param.split('.').map(parseFloat);
             }
+
+            return [];
         }
     };
 });
diff --git a/test/index.js b/test/index.js
index 1ae63f9..491344d 100644
--- a/test/index.js
+++ b/test/index.js
@@ -7,6 +7,8 @@ define(['src/index'], function (compare) {
             expect(compare(2, '1')).to.equal(1);
             expect(compare([2], '1')).to.equal(1);
             expect(compare([2, 3], 2)).to.equal(1);
+            expect(compare('1.1.0.1', 1.1)).to.equal(1);
+            expect(compare('1.0.1', '1')).to.equal(1);
         });
         it('should detect 0', function () {
             expect(compare(1, 1)).to.equal(0);
@@ -15,6 +17,8 @@ define(['src/index'], function (compare) {
             expect(compare([1, 2], '1.2')).to.equal(0);
             expect(compare([2], 2)).to.equal(0);
             expect(compare([8], [8, 0, 0])).to.equal(0);
+            expect(compare('1.1.0.0', 1.1)).to.equal(0);
+            expect(compare('1.0.0', '1')).to.equal(0);
         });
         it('should detect -1', function () {
             expect(compare(1, 2)).to.equal(-1);
@@ -23,6 +27,8 @@ define(['src/index'], function (compare) {
             expect(compare([1, 2], '1.4')).to.equal(-1);
             expect(compare('1.2', 2)).to.equal(-1);
             expect(compare('1.2', [1, 4])).to.equal(-1);
+            expect(compare('1', '1.0.1')).to.equal(-1);
+            expect(compare(1.1, '1.1.0.1')).to.equal(-1);
         });
         it('should detect Wrong Params.', function () {
             expect(compare(1, '1.2.')).to.equal('Wrong Params.');
diff --git a/test/util.js b/test/util.js
index 98dd4d7..95da59f 100644
--- a/test/util.js
+++ b/test/util.js
@@ -6,6 +6,7 @@ define(function (require) {
     var d = '.1.1';
     var e = '1.2.3.';
     var f = '3';
+    var g = {};
     describe('test', function () {
         it('should detect Number', function () {
             expect(util.isNumber(a)).to.equal(true);
@@ -34,6 +35,7 @@ define(function (require) {
             expect(util.toArray(a)).to.deep.equal([20]);
             expect(util.toArray(b)).to.deep.equal([1, 2, 3]);
             expect(util.toArray(c)).to.deep.equal([1, 0, 3]);
+            expect(util.toArray(g)).to.deep.equal([]);
         });
     });
 });