go语言 – 删除map元素

delete(map, key)是从map中删除键的语法。delete函数不返回任何值。

package main

import (  
    "fmt"
)

func main() {  
    personSalary := map[string]int{
        "steve": 12000,
        "jamie": 15000,
    }
    personSalary["mike"] = 9000
    fmt.Println("map before deletion", personSalary)
    delete(personSalary, "steve")
    fmt.Println("map after deletion", personSalary)

}

上面的程序删除键“steve”并输出

map before deletion map[steve:12000 jamie:15000 mike:9000]  
map after deletion map[mike:9000 jamie:15000]