The diferent educational system in China and in uk

There are many schools in China,because the popoulation is large.There are nursery school,primary school,secondary school(include some techniqual school)and the university(include some technigual school ) 
In uk,the pupils study from 5 years old to11 years old in the primary school.However,in China,the pupils start to read from 7 years old to13 years old.When students are 16 years old ,they should have a exam and get  0 level same as China.It is all free for the education in nine years in school.When students are18 years old,they should have a test to get A level,same as the Chinese's entry test.Students have three years to graduate in UK,but in China Students have four years to finish.
The education is not strict in university in China .But  in uk,I think Students always go the library to get the knowledge.