说明这一点的明智方式是什么。
if @thing == "01" or "02" or "03" or "04" or "05"
(数字载于数据类型图表一栏。)
采用<代码>。
if ["01","02","03","04","05"].include?(@thing)
如果这些数值确实是连续的,你可以使用<代码>(1.5).include?等范围。 为了扼杀,你可以使用:
if ("01".."05").include?(@thing)
或者使用案件陈述:
case @thing
when "01", "02", "03", "04", "05"
# do your things
end
这种做法有两个不同之处:
case @thing
when "01".."05"
# do your things
end
case @thing
when *%w[01 02 03 04 05]
# do your things
end
由于<条码>>><>>> 代码>的使用<>=,你也可写:<条码>(>01.05>)=== @thing
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