wolfram-mathematica - 如何在Mathematica中打印以n个前导零开头的整数？

Question

我尝试执行以下操作:

Do[
  f1 = StringReplace[
    "obsxxxx.out", {"xxxx" -> ToString[i]}];
  Print[f1];
  ,
  {i, 200}];

并获得

obs0001.out
obs0002.out
...
obs0010.out
...
obs0100.out
...

等等。

我尝试过:

ToString[Flatten[IntegerDigits[20, 10, 4]]]

但我还有一个 list ...

Answer 1

也许您需要类似以下内容:

Table[IntegerString[i, 10, 4], {i, 1, 10}]

给予

{"0001", "0002", "0003", "0004", "0005", "0006", "0007", "0008", 
"0009", "0010"}

或者

Table["obs" <> IntegerString[i, 10, 4] <> ".out", {i, 1, 10}]

给予

{"obs0001.out", "obs0002.out", "obs0003.out", "obs0004.out", "obs0005.out", "obs0006.out", "obs0007.out", "obs0008.out", "obs0009.out", "obs0010.out"}