diff --git a/History.md b/History.md
index cac06e2..52f5652 100644
--- a/History.md
+++ b/History.md
@@ -1,3 +1,7 @@
+# 3.0.4 / 2018-07-09
+* 修复filter解析值为空字符串或0异常的bug
+
+
 # 3.0.3 / 2018-06-21
 * 修复filter解析空条件异常的bug; 
 * table方法支持 AS 别名。
diff --git a/lib/utils.js b/lib/utils.js
index 0cb7806..65a71b1 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -86,20 +86,32 @@ function parse$opt(opt) {
           break
         }
         // 比较
-        if (tmp.$lt || tmp.$lte) {
-          sql += ` ${k} <${tmp.$lte ? '=' : ''} ${tmp.$lt || tmp.$lte} `
-          if (tmp.$gt || tmp.$gte) {
-            sql += ` AND ${k} >${tmp.$gte ? '=' : ''} ${tmp.$gt || tmp.$gte} `
+        if (tmp.hasOwnProperty('$lt') || tmp.hasOwnProperty('$lte')) {
+          let oc = tmp.hasOwnProperty('$lt') ? '<' : '<='
+          let val = tmp.hasOwnProperty('$lt') ? tmp.$lt : tmp.$lte
+
+          sql += ` ${k} ${oc} ${escape(val)} `
+
+          if (tmp.hasOwnProperty('$gt') || tmp.hasOwnProperty('$gte')) {
+            oc = tmp.hasOwnProperty('$gt') ? '>' : '>='
+            val = tmp.hasOwnProperty('$gt') ? tmp.$gt : tmp.$gte
+            sql += ` AND ${k} ${oc} ${escape(val)} `
           }
           break
         }
-        if (tmp.$gt || tmp.$gte) {
-          sql += ` ${k} >${tmp.$gte ? '=' : ''} ${tmp.$gt || tmp.$gte} `
+        if (tmp.hasOwnProperty('$gt') || tmp.hasOwnProperty('$gte')) {
+          let oc = tmp.hasOwnProperty('$gt') ? '>' : '>='
+          let val = tmp.hasOwnProperty('$gt') ? tmp.$gt : tmp.$gte
+          sql += ` ${k} >${oc} ${escape(val)} `
           break
         }
 
-        if (tmp.$eq) {
-          sql += ` ${k} = ${tmp.$eq} `
+        if (tmp.hasOwnProperty('$eq')) {
+          sql += ` ${k} = ${escape(tmp.$eq)} `
+          break
+        }
+        if (tmp.hasOwnProperty('$ne')) {
+          sql += ` ${k} <> ${escape(tmp.$ne)} `
           break
         }
       default:
diff --git a/package.json b/package.json
index 6bfbae5..b8d0868 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mysqli",
-  "version": "3.0.3",
+  "version": "3.0.4",
   "description": "MySQL tool",
   "main": "index.js",
   "dependencies": {