Question

C语言编程 计算1+1/2+1/4+...1/50的值，并显示出来

main(){int i=2;float sum=1.0;while (i<=填空 ) {sum+=1/填空；</p><p> 填空；</p><p> } printf("sum=%f\n",sum);}

Answer 1

main(){int i=2;float sum=1.0;while (i<=50 ) {sum+=1/<strong _extended="true">(double)i</strong>；</p><p _extended="true"> <strong _extended="true"> i= i + 2；</strong></p><p _extended="true"> } printf("sum=%f\n",sum);}

Answer 2

main(){int i=2;float sum=1.0;while (i<=50 ) {sum+=1/i；</p><p _extended="true"> i++；</p><p _extended="true"> } printf("sum=%f\n",sum);}