java - Go、Java 和 C# 中数组的最大长度是多少？

Question

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Answer 1

The Go Programming Language Specification

Array types

An array is a numbered sequence of elements of a single type, called the element type. The number of elements is called the length and is never negative.

The length is part of the array's type; it must evaluate to a non-negative constant representable by a value of type int.

Numeric types

A numeric type represents sets of integer or floating-point values.

There is a set of predeclared numeric types with implementation-specific sizes:

uint     the set of all unsigned integers, either 32 or 64 bits
int      the set of all signed integers, same size as uint

Go数组长度是int类型的值，是32位或64位有符号整数，取决于编译架构(GOARCH)，例如386或amd64。它还受任何硬件或操作系统内存大小限制。

package main

import (
    "fmt"
    "runtime"
    "strconv"
)

func main() {
    fmt.Println("int is", strconv.IntSize, "bits on", runtime.GOARCH)
}

输出:

int is 64 bits on amd64