I need to format a decimal like this:
我需要像这样格式化一个小数:
00.33
11.24
05.22
The problem is that when I retrieve 00.33 it outputs as 0.33.
问题是,当我检索00.33时,它输出为0.33。
I tried everything and can't get it to work correctly. I could do MySQL's Zerofill but I'm really trying to avoid that.
我尝试了一切,但无法让它正常工作。我可以做MySQL的Zerofill,但我真的想避免这种情况。
2 个解决方案
#1
18
sprintf("%05.2f", 0.33)
# or
"%05.2f" % 0.33
#2
3
Use printf to format the float as follows:
使用printf格式化浮动,如下所示:
printf( "%05.2f", yourFloat)
For printf examples in C++ see: http://www.cplusplus.com/reference/clibrary/cstdio/printf/.
有关C ++中的printf示例,请参阅:http://www.cplusplus.com/reference/clibrary/cstdio/printf/。
The Ruby docs for sprintf are at: http://www.ruby-doc.org/core-1.9.2/Kernel.html#method-i-sprintf.
sprintf的Ruby文档位于:http://www.ruby-doc.org/core-1.9.2/Kernel.html#method-i-sprintf。
#1
18
sprintf("%05.2f", 0.33)
# or
"%05.2f" % 0.33
#2
3
Use printf to format the float as follows:
使用printf格式化浮动,如下所示:
printf( "%05.2f", yourFloat)
For printf examples in C++ see: http://www.cplusplus.com/reference/clibrary/cstdio/printf/.
有关C ++中的printf示例,请参阅:http://www.cplusplus.com/reference/clibrary/cstdio/printf/。
The Ruby docs for sprintf are at: http://www.ruby-doc.org/core-1.9.2/Kernel.html#method-i-sprintf.
sprintf的Ruby文档位于:http://www.ruby-doc.org/core-1.9.2/Kernel.html#method-i-sprintf。