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新手入门，写杨辉三角的时候，运行报错数组越界，求大佬解决

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新手入门，写杨辉三角的时候，运行报错数组越界，求大佬解决

如图，报错为Index -1 out of bounds for length 10
image.png
不是很懂这个越界的意思呐..


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第一次循环 i=0，然后执行到 yangHui[i-1] 不就是 yangHui[-1]。

数组不支持负数呀。所以你应该 i=1; 然后第0行你自己给个1


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