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# Count

统计子串在字符串中出现的次数

· **输入**：string (string)，substring (string)

· **输出**：result (int32)

· **示例**。如果【字段选择】步骤的输入数据流中的 mystring1 字段包含字符串“chocolate drops, chocolate ice cream, chocolate bars”，那么以下函数将返回 3。

`Count(mystring1,"choc")`