计算1/1-1/2+1/3-1/4+1/5 …… + 1/99 - 1/100 的值

// 计算1/1-1/2+1/3-1/4+1/5 …… + 1/99 - 1/100 的值。 (用while语句)
#define _CRT_SECURE_NO_WARNINGS
#include
#include
#include
int main() {
int sign = 1;
double result = 1.0, deno=2.0 , term=1.0;
while(deno<=100) {
sign = (-1)*sign;
term = sign / deno;
result = result + term;
deno = deno + 1;

}
printf("%f\n", result);

system("pause");
return 0;

}