```
###########
# times
10.times{|i|
p "times: #{i}"
}
10.times{
p "times"
}
10.times do |i|
p "times: #{i}"
end
10.times do
p "times"
end
#########
# upto
10.upto(15){
p "upto"
}
10.upto(15){ |i|
p "upto: #{i}"
}
10.upto(15) do
p "upto"
end
10.upto(15) do |i|
p "upto: #{i}"
end
```

結果

```
"times: 0"
"times: 1"
"times: 2"
"times: 3"
"times: 4"
"times: 5"
"times: 6"
"times: 7"
"times: 8"
"times: 9"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"times: 0"
"times: 1"
"times: 2"
"times: 3"
"times: 4"
"times: 5"
"times: 6"
"times: 7"
"times: 8"
"times: 9"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"times"
"upto"
"upto"
"upto"
"upto"
"upto"
"upto"
"upto: 10"
"upto: 11"
"upto: 12"
"upto: 13"
"upto: 14"
"upto: 15"
"upto"
"upto"
"upto"
"upto"
"upto"
"upto"
"upto: 10"
"upto: 11"
"upto: 12"
"upto: 13"
"upto: 14"
"upto: 15"
Process finished with exit code 0
```