such as Aritcle Module：

In edit article page,I need that the members can add some text content field by himself。

such as the text content who want to submit：
step1，（1 text content）
step2，（2 text content）
step3，（3 text content）
He input step1 at a textarea，and if want to more，he must hit a button "add a step",then show him a new testarea for him to input more steps.

1,which module can achieve this？
2,if I use Article module,how to do?

thanks all answers.

You mean having an article like a questionnaire? Or do you want an article where users can add for instance daily updates?

I want like this:
If the article content is:
----------------------------
Step 1：
Preheat oven to 200°C/180°C fan-forced........
Step 2：
Heat oil in a medium frying pan over medium-high heat........
Step 3:
Whisk eggs, milk and flour together in a jug..........
----------------------------

When the member submit this article, the article edit page show him just one field(textarea),and a button(add a step).After he input the first step, he click "add a step",then show him a new field to complete the more steps.

Any idea give me? thanks all!