Ruby – String split() 方法和示例

split是 Ruby 中的 String 类方法，用于根据指定的模式将给定的字符串拆分为子字符串数组。

这里的模式可以是正则表达式或字符串。如果 pattern 是正则表达式或字符串，则 str 在模式匹配的地方被分割。

Syntax:

Parameters: arr is the list, str is the string, pattern is the either string or regExp, and limit is the maximum entries into the array.

Returns: Array of strings based on the parameters.

示例 1：

arr = str.split(pattern, limit) public

输出：

# Ruby program to demonstrate split method
   
# Split without parameters
# Here the pattern is a 
# single whitespace
myArray = "Geeks For Geeks".split
puts myArray

示例 2：

Geeks
For
Geeks

输出：

# Ruby program to demonstrate split method
  
# Here pattern is a regular expression
# limit value is 2
# / / is one white space
myArray = "Geeks For Geeks".split(/ /, 2)
puts myArray

示例 3：

Geeks
For Geeks

输出：

# Ruby program to demonstrate split method
  
# Here the pattern is a regular expression
# limit value is -1
# if the limit is negative there is no 
# limit to the number of fields returned,
# and trailing null fields are not 
# suppressed.
myArray = "geeks geeks".split('s', -1)
puts myArray