我有一个像['12'，'34'，'35'，'231']这样的红宝石数组。
我想把它转换成字符串，比如'12' '34' '35' '231'
我该怎么做呢?
当前回答
假设你的数组:
arr=["1","2","3","4"]
方法将数组转换为字符串:
Array_name.join(",")
例子:
arr.join(",")
结果:
"'1','2','3','4'"
其他回答
> a = ['12','34','35','231']
> a.map { |i| "'" + i.to_s + "'" }.join(",")
=> "'12','34','35','231'"
假设你的数组:
arr=["1","2","3","4"]
方法将数组转换为字符串:
Array_name.join(",")
例子:
arr.join(",")
结果:
"'1','2','3','4'"
irb(main)> varA
=> {0=>["12", "34", "35", "231"]}
irb(main)> varA = Hash[*ex.collect{|a,b| [a,b.join(",")]}.flatten]
...
> puts "'"+['12','34','35','231']*"','"+"'"
'12','34','35','231'
> puts ['12','34','35','231'].inspect[1...-1].gsub('"',"'")
'12', '34', '35', '231'
还有另一种变化
a = ['12','34','35','231']
a.to_s.gsub(/\"/, '\'').gsub(/[\[\]]/, '')
