MakeSliceWithPreAlloc 通过预分配Slice的存储空间构造
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| 13 | |
| 14 | // MakeSliceWithPreAlloc 通过预分配Slice的存储空间构造 |
| 15 | func MakeSliceWithPreAlloc() []int { |
| 16 | var newSlice []int |
| 17 | |
| 18 | newSlice = make([]int, 0, 100000) |
| 19 | for i := 0; i < 100000; i++ { |
| 20 | newSlice = append(newSlice, i) |
| 21 | } |
| 22 | |
| 23 | return newSlice |
| 24 | } |
no outgoing calls