The following is my personal experience for your reference. About half a month ago, I applied for a job. I think the resume is well written, but there is little news about investing in more than a dozen companies. At one time, I thought that the industry was saturated and it was getting harder and harder to find a job. Then one day when I was browsing the web, I saw someone say that the resume optimization of hunting employment had passed the initial screening, so I planned to use this resume optimization with a try attitude. About a few days, just send me a revised resume. I didn't expect it to really work. After revision, I found that my previous resume was really bad. How can I put it? The effect of resume optimization depends on your working years and personal situation. If you are like me, you might as well have a try.