On the Advanced Actions dialog (Figure 8), select Add Block Delimiter twice to create a prepresentation begin and end block for the execution of the business logic created in Step 2, above.
在AdvancedActions对话框中（图8），为了执行上面已在第 2步创建好的业务逻辑，需单击AddBlockDelimiter两次来分别创建预览开始和结束块。
To ensure integrity across multiple instances of this flow, the use and updating of the variable is enclosed within a "begin atomic...end" block.
为了跨此流的多个实例确保完整性，变量的使用和更新都包含在“beginatomic...end”块中。
Begin a block of commands (end with a).
一组命令的开始(以结束)。
Begin a block of commands (end with a).
一组命令的开始(以结束)。
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