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【Go】シングルクォーテーションとダブルクォーテーションの型

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シングルクォーテーションはrune型、ダブルクォーテーションはstring型で違う型になる

package main

import "fmt"

func main() {
	fmt.Print('A' == "A") // invalid operation: 'A' == "A" (mismatched types untyped rune and untyped string)
}

シングルクォーテーションはint32型でUnicodeの値をとる

package main

import "fmt"

func main() {
	s := 'A'
	d := "A"
	fmt.Printf("%v %T %v %T", s, s, d, d) // 65 int32 A string
}
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