1.在QQ主页面中找到左上方本人头像，点击头像进入个人设置页面，如下图所示。
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https://iknow-pic.cdn.bcebos.com/b8014a90f603738dbfe6da6dbe1bb051f919ecd5"/>
2.在个人设置页面中个性装扮选项，点击该选项进入个性装扮页面，如下图所示。
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https://iknow-pic.cdn.bcebos.com/c995d143ad4bd1138fdd667d57afa40f4bfb0569"/>
3.在个性装扮页面中找到背景选项，点击该选项进入背景选择页面，如下图所示。
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https://iknow-pic.cdn.bcebos.com/9825bc315c6034a8f5bb69cec613495409237620"/>
4.在背景页面中分类选项，点击该选项进入分类页面，如下图所示。
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https://iknow-pic.cdn.bcebos.com/2fdda3cc7cd98d10885bdd7e2c3fb80e7aec90f6"/>
5.在分类页面中找到自己想要选择的类目，点击该类目进入背景选择页面，如下图所示。
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https://iknow-pic.cdn.bcebos.com/38dbb6fd5266d016e2364e679a2bd40735fa3556"/>
6.在背景选择页面中找到自己想要设置的背景，点击该背景进入背景设置页面，如下图所示。
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https://iknow-pic.cdn.bcebos.com/7acb0a46f21fbe093863135b66600c338744ad44"/>
7.在背景设置页面中找到下方立即设置选项，点击该选项即可完成背景的设置，如下图所示。
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https://iknow-pic.cdn.bcebos.com/e7cd7b899e510fb3fa75a6d8d433c895d1430c15"/>