用另一个元音替换元音

string = "Hello, world!"
new_string = string.replace('a', 'e').replace('e', 'i').replace('i', 'o').replace('o', 'u').replace('u', 'a')
print(new_string)

var string = "Hello, world!";
var new_string = string.replace(/[aeiou]/g, function(match) {
  switch (match) {
    case 'a':
      return 'e';
    case 'e':
      return 'i';
    case 'i':
      return 'o';
    case 'o':
      return 'u';
    case 'u':
      return 'a';
  }
});
console.log(new_string);

String string = "Hello, world!";
String new_string = string.replace("a", "e").replace("e", "i").replace("i", "o").replace("o", "u").replace("u", "a");
System.out.println(new_string);