Which poem does "Don't wait until there are no flowers to break branches" come from, who is the poet, and what is the overall style of poetry?

Du Qiuniang's "Golden Engraved Clothes" I advise you not to cherish your gold-engraved clothes; I advise you to cherish your youth. Flowers are ready to be broken when they bloom, but don’t wait to break branches when there are no flowers left. Appreciation of this poem is also a well-known masterpiece of Tang poetry. The poem uses simple language and vivid metaphors to express the positive theme of cherishing time and not wasting youth. At the beginning of the poem, it tells people not to just love gold-threaded clothes, that is, not to be greedy for luxury and wealth. It can be seen that the poem is not to encourage people to enjoy themselves in time. The "flower" in the poem refers to the beautiful flower of youth, which means that you can accomplish something in your youth. Therefore, you should seize this beautiful time and make achievements as soon as possible, instead of waiting for youth to pass and being sad when it cannot bloom. It is intended to inspire people to work hard so that nothing can be achieved. The language of the whole poem is light and interesting, and the structure adopts the technique of folk song refrains. The poem is catchy and catchy when read, and the language is sung.