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Q5: how to fix warning: unused variable? #5

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yangwenmai opened this issue Apr 23, 2019 · 0 comments

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yangwenmai commented Apr 23, 2019

当我们在什么 let remainder 但是又没有使用它时，编译器会直接给出警告。

warning: unused variable: `remainder`

运动 cargo run，直接给出帮助提示：

   |         ^^^^^^^^^ help: consider prefixing with an underscore: `_remainder`

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