📅  最后修改于: 2022-03-11 14:58:21.708000             🧑  作者: Mango
var a=window.prompt('enter a number')var b=window.prompt('enter a number')var a=a+b;var b=a-b;var a=a-b;console.log ("value of a is",a);console.log('value of b is',b);