而不是使用大量的「放入」，如何使用「一個放」在ruby中寫入很多字符串

Question

我想在Ruby中更漂亮的代碼。我用了很多這樣的「放」我嘗試使用一個「puts」以相同的格式寫所有這些，我嘗試類似這樣的東西，但它不起作用;

puts << "something 1" << "something 2" << "something 3" 

請問你能否用更好的方法來代替使用很多「puts」來寫這些東西？

Answer 1

somethings = ['something 1', 'something 2', 'something 3'] 
puts somethings.join("\n") 

Answer 2

使用print打印出所有變量在同一行，或puts新行：

x = "something" 
y = 1 
z = true 

print x,y,z 
print "\n" 
puts x,y,z 

輸出：

something1true 
something 
1 
true 

如果它的所有字符串，你可以隨時Concat的他們使用<<或+像這樣：

puts "something1" + "something2" + "something3" 
puts "something1" << "something2" << "something3" 

Answer 3

# if you do create an array variable, then here are two more options 
stuff = ["something1", "something2", "something3"] 
stuff.each { |i| puts i } # on seperate lines 
puts ("%s " * stuff.size) % stuff # all on one line 


# you can still make use of arrays even without a seperate variable 
puts ["something1", "something2", "something3"] # on seperate lines 
puts ["something1", "something2", "something3"].join(' ') # on one line 
puts "%s %s %s " % ["something1", "something2", "something3"] # same as the second option above really 

# then there is just concat as mentioned above, but it seems ugly if you want to include spaces 
puts "something1" + " " + "something2" + " " + "something3" # ugly imho