Once the code has iterated over all the elements in the tuple it enters the else clause of the for loop which prints out the value of the count variable .

一旦代码已经迭代了 tuple中的所有元素，它将进入for循环的else子句，打印count 变量的值。

The first for loop iterates through this tuple cumulating the sum of the numbers in the tuple in the count variable .

第一个for循环迭代此tuple，在count 变量中累计 tuple中数值的和。

In data environment prediction variables describe the interested attributes of tuple and a response variable is to be predicted .

在数据环境下，预测变量描述 元组的感兴趣属性，而响应 变量是要预测的。