sum+=1.0/i与1/i区别？

LiGeng2000 @ 2020-02-07 10:46:56

for(i=1;sum<=k;i++){
    sum+=1.0/i;/*why 1就 过不了，但是1.0就 能过？*/ 
}

by HaveFun @ 2020-02-07 10:47:42

stO 切红题的神仙

by Rainbow_qwq @ 2020-02-07 10:48:03

@LiGeng2000 double除的时候用1.0

by 嫐嬲巭孬 @ 2020-02-07 10:48:29

1.0实数，1整数

by Laser_Crystal @ 2020-02-07 10:48:45

1/i是整数除法，除出来就是整数

1.0/i是浮点数除法，除出来就是小数

by Magallan_forever @ 2020-02-07 10:50:25

@LiGeng2000 1的话是整数除法，就是0

by LiGeng2000 @ 2020-02-07 10:54:01

@Lattle_Car 理解了，谢谢❤

by LiGeng2000 @ 2020-02-07 10:54:41

@AT是女孩子 明白了，谢谢您！

by StudyingExample @ 2020-02-07 10:55:23

@LiGeng2000 double 浮点数！