go語言byte類型報錯cannot use "c" (type string) as type byte in assignment

　　練習Go修改字符串的時候遇到這個問題：cannot use "c" (type string) as type byte in assignment，代碼以下：html package main import "fmt" func main() { s := "hello" c := []byte(s) // 將字符串轉爲[]byte類型 c[0] = 'c' // by

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