ruby - ruby 中的异常处理问题

Question

在下面的代码中，我想处理异常。msg[0]如果没有找到，我必须msg[2]在救援中捕获该异常消息，如果找到，则放置成功消息msg[1]

puts "Verifying Home Page"
 def verifyHomepage(*args)
 begin
  args.each do |msg|    
    page.find(msg[0])
    puts msg[1]
    rescue
    puts msg[2]      
  end
end
end
verifyHomepage(['#logoAnchorr', 'logo anchor found', 'Logo anchor not Found'], ['.navbar-inner', 'Header Bar found', 'Header Bar  not Found'])

在上面的代码中，我得到 error sysntax error unexpected keyword rescue expecting keyword end

Answer 1

萨利尔已经指出你在哪里修复，这是正确的。现在您也可以采用以下方法：

puts "Verifying Home Page"

def verifyHomepage(*args)
  args.each do |msg|   
    next puts(msg[1]) if page.find(msg[0]) rescue nil  
    puts msg[2]     
  end
end
a = [['#logoAnchorr', 'logo anchor found', 'Logo anchor not Found'], ['.navbar-inner', 'Header Bar found', 'Header Bar  not Found']]
verifyHomepage(*a)

输出：

Verifying Home Page
Logo anchor not Found
Header Bar  not Found

Answer 2

你必须在begin里面写block

puts "Verifying Home Page"
def verifyHomepage(*args)  
    args.each do |msg|
      begin
        page.find(msg[0])
        puts msg[1]
      rescue
        puts msg[2]
    end
  end
end
verifyHomepage(['#logoAnchorr', 'logo anchor found', 'Logo anchor not Found'], ['.navbar-inner', 'Header Bar found', 'Header Bar  not Found'])