update

README.md

@@ -5,31 +5,109 @@
 
 ## Example 示例
 
-```console
-python myqrcode.py -l H https://github.com/sylnsfar/QR-Code
-```
+![](https://github.com/sylnsfar/QR-Code/blob/master/example/qrs0.jpg)
 
-![](https://github.com/sylnsfar/QR-Code/blob/master/example/qrs.jpg)![](https://github.com/sylnsfar/QR-Code/blob/master/example/riven.png)
+![](https://github.com/sylnsfar/QR-Code/blob/master/example/qrs1.jpg)
+
+![](https://github.com/sylnsfar/QR-Code/blob/master/example/qrs2.jpg)
 
 ## Usage 用法
 
-```con
-python myqrcode.py [-l [L,M,Q,H]] xxxxxx
+### Common QR-Code    普通QR二维码
+
+```
+python myqr.py 	[-h] 
+				[-v {1,2,3,...,40}] 
+				[-l {L,M,Q,H}] 
+				Words
 ```
 
-* The `myqrcode.py` is the main file.
+* Use argument `-h` for help.
 
-  `myqrcode.py` 是主文件。
+  使用参数 `-h` 来获得使用帮助。
 
-* Argument `-l` or `--level` means the Error Correction Level: L(Low), M(Medium), Q(Quartile) and H(High). **The default level is Q**, so that you can just `python myqrcode.py xxxxxxx` . 
+  ​
 
-  参数`-l` 或者`--level` 代表纠错等级：L、M、Q 和 H（从低到高）。默认使用的等级是 Q，所以可以直接`python myqrcode.py xxxxx` 。
 
-* `xxxxxx` is the words that you are putting into a QR-Code. You can write a URL or a sentence. 
+```console
+python myqr.py https://github.com
+```
 
-  `xxxxxx` 代表要生成 QR 二维码的信息，可以是一个链接地址，也可以是其它字符串。
+* **Simplest  way**: Just input a URL or a sentence, then get your QR-Code in the current directory.
 
-## Supported 可用字符
+  **最简单的用法**：在命令后输入链接或者句子作为参数，然后在程序的当前目录中产生相应的QR二维码图片。
+
+  ​
+
+```console
+python myqr.py https://github.com -v 10 -l Q
+```
+
+* The **default** length of a side of QR-Code depends on both the numbers of words you input. And the **default** level (Error Correction Level) is **H** (the highest).
+
+  默认边长是取决于你输入的信息的长度，而默认纠错等级是最高级的H。
+
+* **Customize size**: If you want to control the length and the error-correction-level, use the `-v` and `-l` arguments. The `-v`  representing the length is from 1 to 40 that 1 means minimum and 40 means maximum. The `-l`  representing the level is one of L, M, Q and H that L means lowest and H means highest.
+
+  **自定义尺寸**：如果想要控制边长和纠错水平就使用 `-v` 和 `-l` 参数。使用 `-v` 来控制边长，范围是1至40，数字越大边长越大；使用 `-l` 来控制纠错水平，范围是L、M、Q、H，从左到右依次升高。
+
+  ​
+
+
+
+### Artistic QR-Code    艺术QR二维码
+
+	python myqr.py 	[-h] 
+					[-v {1,2,3,...,40}] 
+					[-l {L,M,Q,H}] 
+					[-p picture_file] 
+					[-c] 
+					[-con contrast] 
+					[-bri birghtness] 
+					Words
+* arguments `-h`, `-v` and `-l` is as mentioned above.
+
+  参数 `-h`, `-v` 和 `-l` 如上文述。
+
+
+
+```console
+python myqr.py https://github.com -p github.jpg
+```
+
+* The `-p` is to combine the QR-Code with the following picture which is at the same directory as the program. The resulting picture is **black and white** by default.
+
+  参数`-p` 用来将QR二维码图像与一张同目录下的图片相结合，产生一张黑白图片。
+
+* Suggestion: If the size of the picture is large, you should choose a correct large `-v` too instead of using the default one.
+
+  建议在图片尺寸大的时候使用 `-v` 的值也应该适当变大。
+
+
+
+```console
+python myqr.py https://github.com -p github.jpg -c
+```
+
+* The `-c` is to make the resulting picture colorized.
+
+  加上参数 `-c` 可以使产生的图片由黑白变为彩色的。
+
+
+
+```console
+python myqr.py https://github.com -p github.jpg [-c] -con 1.5 -bri 1.6
+```
+
+* The `-con` changes the contrast of the picture that 1.0 means original image, lower values mean less contrast and higher mean more. Default: 1.0.
+
+  参数`-con` 用以调节图片的对比度，1.0 表示原始图片，更小的值表示更低对比度，更大反之。默认为1.0。
+
+* The `-bri` changes the brightness and the value is just like `-con`'s.
+
+  参数 `-bri` 用来调节图片的亮度，其余用法和取值与 `-con` 相同。
+
+## Supported Characters   可用字符
 
 * Numbers:  `0~9`