string 如何将“字符串指针”转换为 Golang 中的字符串?
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时间:2020-09-08 16:17:49 来源:igfitidea点击:
How to convert a 'string pointer' to a string in Golang?
提问by Jared Meyering
Is it possible to get the string value from a pointer to a string?
是否可以从指向字符串的指针获取字符串值?
I am using the goopt packageto handle flag parsing and the package returns *string only. I want to use these values to call a function in a map.
我正在使用goopt 包来处理标志解析,并且该包仅返回 *string。我想使用这些值来调用地图中的函数。
var strPointer = new(string)
*strPointer = "string"
functions := map[string]func() {
"string": func(){
fmt.Println("works")
},
}
//Do something to get the string value
functions[strPointerValue]()
returns
返回
./prog.go:17:14: cannot use strPointer (type *string)
as type string in map index
回答by OneOfOne
Dereference the pointer:
取消引用指针:
strPointerValue := *strPointer