diff --git a/src/appendix/rename_pattern.md b/src/appendix/rename_pattern.md
index 75362a2..60473de 100644
--- a/src/appendix/rename_pattern.md
+++ b/src/appendix/rename_pattern.md
@@ -2,7 +2,7 @@
 
 ## 基本语法
 
-![重命名规则语法](../images/rename_pattern_rule.jpg)
+![重命名规则语法](../images/rename_pattern_rule.png)
 
 ## 示例
 
@@ -23,3 +23,16 @@
 | $1>F{A>b} | bpple |
 | $1{p>b}{a>p} | pbble |
 | $1{a>p}{p>b} | bbble |
+
+假设有四条重命名的名称，其中每一条匹配到的字符串为：
+* 字符串1捕获组1: 100
+* 字符串2捕获组1: 500
+* 字符串3捕获组1: 500
+* 字符串4捕获组1: 1300
+
+| 字符串 | 重命名规则 | 结果 |
+|:----:|:----:|:----:|
+| 字符串1 | $>N | 1 |
+| 字符串2 | $>N | 2 |
+| 字符串2 | $>N | 2 |
+| 字符串3 | $>N | 3 |
diff --git a/src/images/rename_pattern_rule.jpg b/src/images/rename_pattern_rule.jpg
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index 1dca90d..0000000
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