From 6e9ae382b8f780b07438998b917ce9e2e970a025 Mon Sep 17 00:00:00 2001
From: stanzhai <jasondan325@163.com>
Date: Sun, 8 Jun 2014 22:53:50 +0800
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diff --git a/source/chapter3/09_Summary_of_the_Grammar.md b/source/chapter3/09_Summary_of_the_Grammar.md
index e69de29b..41790bf9 100644
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@@ -0,0 +1,4 @@
+# 语法总结 (Summary of the Grammar)
+
+## 语句
+

From 7028c806286c49ef9426791d47697af85c2b2758 Mon Sep 17 00:00:00 2001
From: stanzhai <jasondan325@163.com>
Date: Mon, 9 Jun 2014 00:08:30 +0800
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diff --git a/source/chapter3/09_Summary_of_the_Grammar.md b/source/chapter3/09_Summary_of_the_Grammar.md
index 41790bf9..148607a5 100644
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 ## 语句
 
+> 语句  
+*statement* → [*expression*]() ; opt  
+*statement* → [*declaration*]() ; opt  
+*statement* → [*loop-statement*]() ; opt  
+*statement* → [*branch-statement*]() ; opt  
+*statement* → [*labeled-statement*]()  
+*statement* → [*control-transfer-statement*]() ; opt  
+*statements* → [*statement statement*]() opt
+
+<p></p>
+
+> 循环语句  
+> *loop-statement* → [*for-statement*]()  
+> *loop-statement* → [*for-in-statement*]()  
+> *loop-statement* → [*while-statement*]()  
+> *loop-statement* → [*do-while-statement*]()  
+
+<p></p>
+
+> for 循环  
+> *for-statement* → **for** [*for-init*]() opt ; [*expression*]() opt ; [*expression*]() opt [*code-block*]()  
+> *for-statement* → **for** ( [*for-init*]() opt ; [*expression*]() opt ; [*expression*]() opt ) [*code-block*]()  
+> *for-init* → [*variable-declaration*]() | [*expression-list*]()   
+
+<p></p>
+
+> for-in 循环  
+> *for-in-statement* → **for** [*pattern*]() **in** [*expression*]() [*code-block*]()  
+
+<p></p>
+
+> while 循环  
+> *while-statement* → **while** [*while-condition*]() [*code-block*]()  
+> *while-condition* → [*expression*]() | [*declaration*]()  
+
+<p></p>
+
+> do-while 循环  
+> *do-while-statement* → **do** [*code-block*]() **while** [*while-condition*]()  
+
+<p></p>
+
+> 判断语句(Branch Statement)  
+> *branch-statement* → [*if-statement*]()  
+> *branch-statement* → [*switch-statement*]()  
+
+<p></p>
+
+> if 语句  
+> *if-statement* → **if** [*if-condition*]() [*code-block*]() [*else-clause*]() opt  
+> *if-condition* → [*expression*]() | [*declaration*]()  
+> *else-clause* → **else** [*code-block*]() | **else** [*if-statement*]()  
+