C语言程序题！！ If while语句

请详细的讲解一下 c语言小白谢谢！

1+3+5+7 = 16

i =0 >> i%2 = 0 >>i++  =1 >>s+=i  s=s+i =1

i =1 >> i%2 = 1 >>i++  =2 >>continue

i =2 >> i%2 = 0 >>i++  =3 >>s+=i  s=s+i =4

i =3 >> i%2 = 1 >>i++  =4 >>continue

i =4 >> i%2 = 0 >>i++  =5 >>s+=i  s=s+i =9

i =5 >> i%2 = 1 >>i++  =6 >>continue

i =6 >> i%2 = 0 >>i++  =7 >>s+=i  s=s+i =16

i =7 >> i%2 = 1 >>i++  =8 >>continue