Listing 3. For loop conformance.

清单3 . for循环的一致性。

The for loop and sequence indexing

for 循环和序列索引

Listing 4. The for loop and a list.

清单4 . for循环和list。

Listing 2. The for loop and a tuple.

清单2 . for循环和tuple。

Listing 3. The for loop and a string.

清单3 . for循环和string。