1、
var x = 3 + 5 + "8";
console.log(x); //先计算数字3+5,再+字符串'8' //88
2、
var x = "8" + 3 + 5;
console.log(x); //先计算字符串'8'+3,再+5 //835
1、
var x = 3 + 5 + "8";
console.log(x); //先计算数字3+5,再+字符串'8' //88
2、
var x = "8" + 3 + 5;
console.log(x); //先计算字符串'8'+3,再+5 //835