var testObj = {
‘a‘:‘111‘,
‘b‘:‘222‘,
‘c‘:‘333‘,
‘d‘:‘444‘
}
for(var i in testObj){
console.log(i);//a,b,c,d
}
for(var i in testObj){
console.log(testObj[i]);//111,222,333,444
js for in循环遍历对象，获取key:value值
原文地址：https://www.cnblogs.com/Fourteen-Y/p/10487813.html