#include<stdio.h> #include<stdlib.h> int main(){ int den = 1; //分母 double member = 1.0; //分子 double sum = 0.0; int flag = 1; for (int i = 0; i < 100; i++) { sum += flag * member / den; den++; flag *= -1;
} printf("%lf\n", sum); system("pause"); return 0;}
转载于:https://www.cnblogs.com/lsiyu/p/8711676.html
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