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authorElena Bolshakova <lena-san@yandex-team.ru>2015-06-10 11:34:14 +0300
committerElena Bolshakova <lena-san@yandex-team.ru>2015-06-10 11:34:14 +0300
commit193f66553fc114e83e7c4cfb4607e4a1b57c4f09 (patch)
tree30988e25d31ed6dff83cf409ad093c3c7ec9322c /zh-cn/java-cn.html.markdown
parent676568cca8731d0dbb2d2bdeff08cc092d283177 (diff)
parent5086480a04d27cff2380f04609210082000538d4 (diff)
Merge branch 'master' of https://github.com/adambard/learnxinyminutes-docs
Diffstat (limited to 'zh-cn/java-cn.html.markdown')
-rw-r--r--zh-cn/java-cn.html.markdown15
1 files changed, 9 insertions, 6 deletions
diff --git a/zh-cn/java-cn.html.markdown b/zh-cn/java-cn.html.markdown
index f7d319e6..f08d3507 100644
--- a/zh-cn/java-cn.html.markdown
+++ b/zh-cn/java-cn.html.markdown
@@ -124,7 +124,7 @@ public class LearnJava {
// HashMaps
///////////////////////////////////////
- // 操作符
+ // 操作符
///////////////////////////////////////
System.out.println("\n->Operators");
@@ -161,10 +161,13 @@ public class LearnJava {
// 自增
int i = 0;
System.out.println("\n->Inc/Dec-rementation");
- System.out.println(i++); //i = 1 后自增
- System.out.println(++i); //i = 2 前自增
- System.out.println(i--); //i = 1 后自减
- System.out.println(--i); //i = 0 前自减
+ // ++ 和 -- 操作符使变量加或减1。放在变量前面或者后面的区别是整个表达
+ // 式的返回值。操作符在前面时,先加减,后取值。操作符在后面时,先取值
+ // 后加减。
+ System.out.println(i++); // 后自增 i = 1, 输出0
+ System.out.println(++i); // 前自增 i = 2, 输出2
+ System.out.println(i--); // 后自减 i = 1, 输出2
+ System.out.println(--i); // 前自减 i = 0, 输出0
///////////////////////////////////////
// 控制结构
@@ -192,7 +195,7 @@ public class LearnJava {
}
System.out.println("fooWhile Value: " + fooWhile);
- // Do While循环
+ // Do While循环
int fooDoWhile = 0;
do
{