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28 lines
488 B
28 lines
488 B
package main
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import "fmt"
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func main(){
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// 方式一
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var m map[int]string // 声明一个map
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fmt.Println(m)
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m = map[int]string{} // 初始化一个map
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fmt.Println(m)
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// 方式二
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var m2 map[int]string = map[int]string{}
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fmt.Println(m2)
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// 方式三
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m3 := map[int]string{}
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fmt.Println(m3)
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// 设置、获取、删除
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m3[1] = "Tinywan"
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a := m3[1]
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fmt.Println(m3) // map[1:Tinywan]
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fmt.Println(a) // Tinywan
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delete(m3,1) // 删除一个map
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fmt.Println(m3) // map[]
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} |