1
图解一:
准备一张正方形彩纸,沿对角线、中线折出折痕。
![](https://pic.qbaobei.com/Uploads/Picture/2021-01-27/6010d8e037fd9_375_0.jpg)
2
图解二:
捏住中线折痕,折出正方形,把四边打开压折成四边形。
![](https://pic.qbaobei.com/Uploads/Picture/2021-01-27/6010d8e0e197b_375_0.jpg)
3
图解三:
翻面,表层拉开,压折下去折成菱形。
![](https://pic.qbaobei.com/Uploads/Picture/2021-01-27/6010d8e11747a_375_0.jpg)
4
图解四:
继续把下边两边对齐中线折叠。
![](https://pic.qbaobei.com/Uploads/Picture/2021-01-27/6010d8e1375d4_375_0.jpg)
5
图解五:
把四个角往上折,再把中间撑开。
![](https://pic.qbaobei.com/Uploads/Picture/2021-01-27/6010d8e1500c8_375_0.jpg)
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