Can you find a job after you are married and have a work permit? Sure. The unemployment rate is low and if you are motivated to learn will there be tons of service jobs. There are a lot of jobs most Swiss are not willing to do - like being a waitress, so they need to find willing immigrants but have a hard time doing so based on the work permit regulations. You will not get rich... but the pay is way better than in most other countries even if you calculate the high costs in.
Your exact chances depend a bit on yourself: Learning English and the local language, either French or German is very important. If you frankly know how to present yourself: there are more and more Chinese tourists coming to China and I have seen that every major jewellery and designer shop in Zurich had several Chinese speaking shop assistants to meet the demand. If you have the looks, dress and attitude for retail is luxury shops probably something to check out. Same is true for tour companies and most major tourist spots. Since they cannot easily hire people from China will your work permit be your major advantage.
And yes, we will get married first, the job thing will be our next step.
Diffculty to find a retail job: I cannot imagine anyone selling anything without speaking the local language. If you do not, probably very difficult.
Education: Plenty of options, many cost money. One thing your husband should help you with - as soon as you live here and are married register with the local government agency supporting jobseeker (well, "controlling job seeker" is more the truth..). They pay money to people who lost their job but also have some education options. You will not get money if you have not worked in Switzerland or Europe before, but they might get you a free German course!
at a guess, being a waitress probably pays around CHF 3000-3500 according to this website http://www.lohnrechner.ch , sorry german, french and italian only. but it probably depends a lot where in switzerland you work and what kind of food outlet/restaurant etc. you work at.
good luck and all the best for you and your partner!
However, with this background and no skills of the local language, it is very difficult to find employment, whether it's in a restaurant, in a shop, a hotel or a cosmetics institute. At least basic German skills are required for any job in any of these industries as your customers and colleagues would be predominantly German speakers no matter what. So the more German you speak, the better. Sure there might be the odd exception and you might get lucky and find something that doesn't require German, but such opportunities are very rare, so be prepared to search for a long time. Focus on learning German, this should be your number one priority.
You might want to consider the option of tutoring/teaching Chinese at some point.
Or maybe try the tour companies themselves.
More and more people want to learn Chinese and Japanese these days, do you have any qualifications for teaching these as a foreign language? This might be a quick way to get qualified for a good job. You could get a job in one of the many language schools. I don't think a lack of german skills will necessarily be a problem to work in a language school.
Seasonal farm work (picking fruit/grapes/etc) is available, and domestic cleaning work, for those not proficient enough in Swiss or High German.
and i forgot to say that we will go back to switzerland in one year, so i still have one year to focus on my grrman learning, so i think the language wont be such a big problem for me!