diff --git a/javascript/4.变量.md b/javascript/4.变量.md
index e46e5c0..970d3fa 100644
--- a/javascript/4.变量.md
+++ b/javascript/4.变量.md
@@ -81,3 +81,12 @@
 - \\xnn
 - \\unnnn
 
+### .length
+
+### .toString()
+
+## object
+
+### 创建
+
+`new Object() 或者 {}`
\ No newline at end of file
diff --git a/javascript/5.操作符.md b/javascript/5.操作符.md
new file mode 100644
index 0000000..1b73d95
--- /dev/null
+++ b/javascript/5.操作符.md
@@ -0,0 +1,52 @@
+# 操作符
+
+## 一元操作符
+
+> 只能操作一个变量的操作符叫一元操作符
+
+- ++
+- --
+- +
+- -
+
+## 布尔操作符
+
+- ！
+- &&
+- ||
+
+## 乘性操作符
+
+- *
+- /
+- %
+
+## 加性操作符
+
+- +
+- -
+
+## 关系操作符
+
+- \>
+- \<
+- \>=
+- \<=
+
+## 相等操作符
+
+- ==
+- !=
+- ===
+
+## 赋值操作符
+
+- +=
+- -=
+- *=
+- /=
+
+## 逗号操作符
+
+- var num1 = 1, num2 = 2;
+- var num2 = (1,2,3,4)
\ No newline at end of file
diff --git a/javascript/6.语句.md b/javascript/6.语句.md
new file mode 100644
index 0000000..205bcb1
--- /dev/null
+++ b/javascript/6.语句.md
@@ -0,0 +1,30 @@
+# 语句 全部实际演示一下就ok 
+
+## if
+
+
+
+## do-while
+
+
+
+## while
+
+
+
+## for
+
+
+
+## for in
+
+
+
+## break continue
+
+
+
+## switch
+
+
+
diff --git a/javascript/7.函数.md b/javascript/7.函数.md
new file mode 100644
index 0000000..43b605c
--- /dev/null
+++ b/javascript/7.函数.md
@@ -0,0 +1,12 @@
+# 函数
+
+## 定义函数
+
+```javascript
+function name(arg){
+	....
+}
+```
+
+## 理解参数
+
diff --git a/javascript/8.基础类型与引用类型.md b/javascript/8.基础类型与引用类型.md
new file mode 100644
index 0000000..2a0847d
--- /dev/null
+++ b/javascript/8.基础类型与引用类型.md
@@ -0,0 +1,14 @@
+# 基础类型与引用类型
+
+## 基础类型
+
+- string
+- number
+- boolean
+- undefined
+- null
+
+## 引用类型
+
+- object
+
diff --git a/javascript/9.作用域.md b/javascript/9.作用域.md
new file mode 100644
index 0000000..7331661
--- /dev/null
+++ b/javascript/9.作用域.md
@@ -0,0 +1,23 @@
+# 作用域
+
+```javascript
+var color = "blue"; 
+function changeColor(){ 
+  if (color === "blue"){ 
+  color = "red"; 
+  } else { 
+  color = "blue"; 
+  } 
+} 
+changeColor(); 
+alert("Color is now " + color);
+```
+
+## 特殊情况
+
+- if
+- for
+- ...
+
+> 垃圾回收 gc
+