yarn add --dev \
@babel/core \
@babel/cli \
@babel/preset-env \
@babel/preset-typescript \
typescript
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| package main | |
| import "fmt" | |
| // fibonacci 函数会返回一个返回 int 的函数。 | |
| func fibonacci() func() int { | |
| n0 := 0 | |
| n1 := 1 | |
| return func() int { | |
| n2 := n0 + n1 |