diff --git a/index.js b/index.js
index 5a0987b..f5220ef 100644
--- a/index.js
+++ b/index.js
@@ -3,8 +3,10 @@ const path = require('path')
 const commander = require('commander')
 const deepmerge = require('deepmerge')
 
+const my = { secretKeys:[] }
+
 module.exports = {
-  mergeConfig: function(rawConfig) {
+  mergeConfig(rawConfig) {
     if (!global.EnviConfig) {
       global.EnviConfig = rawConfig
       // 不知为何，必须定义成全局变量，才能保证多次require只执行一次。
@@ -33,7 +35,9 @@ module.exports = {
       }
       if (fs.existsSync((configFile = path.join(process.cwd(), './ConfigSecret.js')))) {
         // 如果存在，覆盖掉 ConfigBasic 和 ConfigCustom 里的参数
-        global.EnviConfig = deepmerge(global.EnviConfig, require(configFile))
+        let secretConfig = require(configFile)
+        my.secretKeys = Object.keys(secretConfig)
+        global.EnviConfig = deepmerge(global.EnviConfig, secretConfig)
         console.info(`${configFile} loaded`)
       } else {
         console.warn(`  - Missing and omitting ${configFile}`)
@@ -61,13 +65,14 @@ module.exports = {
         }
       }
     }
+
     delete global.EnviConfig.commanderOptions // do not print commanderOptions to console
-    console.log('- Final Configuration: ', global.EnviConfig)
-    console.log('######## Completed System Configuration ########')
+
+    console.log('######## Completed Environment Configuration ########')
     return global.EnviConfig
   },
 
-  getDynamicConfig: function (dynamicConfigFile='ConfigDynamic.js') { // dynamicConfigFile should be absolute or relative to the node process's dir.
+  getDynamicConfig(dynamicConfigFile='ConfigDynamic.js') { // dynamicConfigFile should be absolute or relative to the node process's dir.
     const fullpath = path.join(process.cwd(), dynamicConfigFile)
     if (fs.existsSync(fullpath)) {
       delete require.cache[require.resolve(fullpath)] // delete require.cache[fullpath] 不起作用
@@ -76,4 +81,16 @@ module.exports = {
       return {}
     }
   },
+
+  showEnvi() {
+    console.log('{')
+    for (let key in global.EnviConfig) {
+      if (my.secretKeys.hasOwnProperty(key)) {
+        console.log(`  ${key} : ******,`)
+      } else {
+        console.log(`  ${key} : `, global.EnviConfig[key], ',')
+      }
+    }
+    console.log('}')
+  }
 }