我想cout输出一个带前导零的int,因此值1将打印为001,值25打印为025.我怎样才能做到这一点？
我有一个float值列表,我想cout用2位小数打印它们.
例如:
10.900 should be printed as 10.90
1.000 should be printed as 1.00
122.345 should be printed as 122.34
我怎样才能做到这一点？
(setprecision似乎没有帮助.)