ruby 遍历字符串

str = "string"

# 1.字符串的迭代

for i in 0...(str.length)

puts str[i]

end

# 2.字符串的迭代

str.each_char{|s|

puts s

}

# 3.二进制数值

str.each_byte{|s|

puts s

}

# 4.字符串的迭代"遇到n输出后自动换行"----没测试

str.each_line{|s|

puts s

}