我不小心在 R 代码中多写了一个 +，却发现它完全没有报错。
继续试了几种情况后，我发现多个运算符连在一起时，R 的行为相当奇怪。
有人能解释原因，以及这些运算的先后顺序吗？
6 + 2
#> [1] 8
6 +++ 2
#> [1] 8
6 --- 2
#> [1] 4
6 +-+ 2
#> [1] 4
6 -+- 2
#> [1] 8从英语翻译查看原文
I mistakenly put an extra + into my R code and found that it raised no complaint whatsoever.
Actually, after trying a few more things, I found R behaves rather strangely if several operators appear together.
Could somebody explain the reason, and which operations get evaluated first?
6 + 2
#> [1] 8
6 +++ 2
#> [1] 8
6 --- 2
#> [1] 4
6 +-+ 2
#> [1] 4
6 -+- 2
#> [1] 8
