完整程序如下 include< math. h> maino int S, float n, t, Pi t=1;Pi=0;n=10;S=1 while((fabs (t)>1e-6 [Pi=Pi+t n=n+2; SE-S, t=S/n PiPI*4 printf("Pi=%106f \n", Pi);3完整程序如下 #include<math.h> main() { int s; float n，t，Pi; t=1；Pi=0;n=1.0;S=1; while((fabs(t))>1e-6) {Pi=Pi+t; n=n+2; s=-s; t=S/n; } Pi=Pi*4; printf("Pi=%10.6f＼n"，Pi); }