提供免费类似QQ表情等编辑器和显示器使用的例子代码，可将表情变成字符串符号，接收方可将表情从符号中还原。此组件为免费。无使用限制版本。-QQ free expression and other similar editors and display examples of code used can be a string expression into a symbol, the receiver will be restored expression from the symbol. Thi

完全免费，可以设置页边距，左上角，右下角。-Completely free, you can set the page margins, the upper-left corner of the lower right corner.