node . js . OS . arch()方法
os.arch()方法是 os 模块的内置应用编程接口，用于获取当前 node.js 所编译的计算机的 CPU 架构。
语法:
os.arch()
参数:此方法不接受任何参数。
返回值:该方法返回当前 node.js 编译所针对的操作系统 CPU 架构。可能的值为“x32”、“x64”、“arm”、“arm64”、“s390”、“s390x”、“mipsel”、“ia32”、“mips”、“ppc”和“ppc64”。
下面的例子说明了 os.arch()方法在 Node.js 中的使用:
例 1:
// Node.js program to demonstrate the
// os.arch() method
// Allocating os module
const os = require('os');
// Printing os.arch()
console.log(os.arch());
输出:
x64
例 2:
<script>
// Node.js program to demonstrate the
// os.arch() method
// Allocating os module
const os = require('os');
// Printing os.arch() description
// of the architecture
switch(os.arch()){
case 'x32':
console.log("32-bit extended system");
break;
case 'x64':
console.log("64-bit extended system");
break;
case 'arm':
console.log("32-bit Advanced RISC Machine");
break;
case 'arm64':
console.log("64-bit Advanced RISC Machine");
break;
case 's390':
console.log("31-bit The IBM System/390, the"
+ " third generation of the System/360"
+ " instruction set architecture");
break;
case 's390x':
console.log("64-bit The IBM System/390, the"
+ " third generation of the System/360"
+ " instruction set architecture");
break;
case 'mipsel':
console.log("64-bit Microprocessor without"
+ " Interlocked Pipelined Stages");
break;
case 'mips':
console.log("32-bit Microprocessor without"
+ " Interlocked Pipelined Stages");
break;
case 'ia32':
console.log("32-bit Intel Architecture");
break;
case 'ppc':
console.log("PowerPC Architecture.");
break;
case 'ppc64':
console.log("64-bit PowerPC Architecture.");
break;
default:
console.log(" unknown processor");
}
</script>
输出:
64-bit extended system
注意:以上程序使用node index.js命令编译运行。
参考:https://nodejs . org/API/OS . html # OS _ OS _ arch
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