def c1 (n,i): minNI = min(i,n-1) result = 1 for j in range (0,minNI): result = result * (n-j)/(minNI-j) return result print ('更改前C（5，3）数值为:',c1(5,3)) print ('更改前C（100，97）数值为:',c1(100,97)) print ('更改前C（100，3）数值为:',c1(100,3)) #例