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fix: fix codes to separate the code and the comments #11

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24 changes: 12 additions & 12 deletions chapter4.md
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,7 @@ PDF文档中的页面字典汇集了使用这些指令使用的资源（字体

|键|值类型|值|
|---|---|---|
|/Type* |name|必须是/Pages|
|/Type* |name|必须是/Page|
|/Parent* |间接引用字典|页面树中此节点的父节点|
|/Resources|dictionary|页面的资源（字体，图像等）。如果完全省略此条目，则资源将从页面树中的父节点继承。如果确实没有资源，请包含此条目但使用空字典|
|/Contents|indirect reference to stream or array of such references|一个或多个部分中页面的图形内容。如果缺少此条目，则页面为空|
Expand Down Expand Up @@ -193,16 +193,16 @@ endobj

```
%PDF-1.0 文件头
1 0 obj Top-level of page tree: has two children—page one and an intermediate page tree node
1 0 obj % Top-level of page tree: has two children—page one and an intermediate page tree node
<< /Kids [2 0 R 3 0 R] /Type /Pages /Count 3 >>
endobj
4 0 obj Contents stream for page one
4 0 obj % Contents stream for page one
<< >>
stream
1. 0.000000 0.000000 1. 50. 770. cm BT /F0 36. Tf (Page One) Tj ET
endstream
endobj
2 0 obj Page one
2 0 obj % Page one
<<
/Rotate 0
/Parent 1 0 R
Expand All @@ -213,9 +213,9 @@ endobj
/Contents [4 0 R]
>>
endobj
5 0 obj Document catalog
5 0 obj % Document catalog
<< /PageLayout /TwoColumnLeft /Pages 1 0 R /Type /Catalog >> endobj
6 0 obj Page three
6 0 obj % Page three
<<
/Rotate 0
/Parent 3 0 R
Expand All @@ -226,10 +226,10 @@ endobj
/Contents [7 0 R]
>>
endobj
3 0 obj Intermediate page tree node, linking to pages two and three
3 0 obj % Intermediate page tree node, linking to pages two and three
<< /Parent 1 0 R /Kids [8 0 R 6 0 R] /Count 2 /Type /Pages >>
endobj
8 0 obj Page two
8 0 obj % Page two
<<
/Rotate 270
/Parent 3 0 R
Expand All @@ -240,20 +240,20 @@ endobj
/Contents [9 0 R]
>>
endobj
9 0 obj Content stream for page two
9 0 obj % Content stream for page two
<< >>
stream
q 1. 0.000000 0.000000 1. 50. 770. cm BT /F0 36. Tf (Page Two) Tj ET Q
1. 0.000000 0.000000 1. 50. 750 cm BT /F0 16 Tf ((Rotated by 270 degrees)) Tj ET
endstream
endobj
7 0 obj Content stream for page three
7 0 obj % Content stream for page three
<< >>
stream
1. 0.000000 0.000000 1. 50. 770. cm BT /F0 36. Tf (Page Three) Tj ET
endstream
endobj
10 0 obj Document information dictionary
10 0 obj % Document information dictionary
<<
/Title (PDF Explained Example)
/Author (John Whitington)
Expand All @@ -263,7 +263,7 @@ endobj
>>
endobj xref
0 11
trailer Trailer dictionary
trailer % Trailer dictionary
<<
/Info 10 0 R
/Root 5 0 R
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1 change: 1 addition & 0 deletions chapter5.md
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Expand Up @@ -221,6 +221,7 @@ c运算符再采用三个坐标：第一个控制点，第二个控制点和终
h B % 封闭路径并填充
```
![图 5-5](./images/figure%205-5.png)

我们使用g运算符来设置填充颜色。这在第60页的“颜色和颜色空间”中进行了解释。
对于第二条曲线，我们使用了y运算符，它类似于c，除了第二个控制点和终点是同一个，所以只有四个需要操作数。

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10 changes: 5 additions & 5 deletions chapter6.md
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Expand Up @@ -53,11 +53,11 @@ PDF采用中间立场 - 保留了字体和小尺寸文本布局的思想，

举个例子，我们回到第2章中的“Hello，World！”文件：
```
1. 0. 0. 1. 50. 700. cm Position at (50, 700)
BT Begin text block
/F0 36. Tf Select /F0 font at 36pt
(Hello, World!) Tj Place the text string
ET End text block
1. 0. 0. 1. 50. 700. cm% Position at (50, 700)
BT% Begin text block
/F0 36. Tf% Select /F0 font at 36pt
(Hello, World!) Tj% Place the text string
ET% End text block
```

在这里，我们使用带有字体名称和大小运算符的Tf运算符来选择字体，使用Tj运算符来显示文本字符串。
Expand Down