|M| 如何取整 百 如 121 转为100 599 转 为500
谢谢

[解决办法]
up
[解决办法]
a = 1999;
a = (a/1000)*1000;

思路如此
[解决办法]
try ->

int n = 121;
n = (121 / 100) * 100;