使用单个代码查找"：-“或"？-”或". -“或"；-”文本中的位置

// 使用字符串处理函数查找特定字符的位置
function findCharacterPositions(text, character) {
  var positions = [];
  var index = text.indexOf(character);
  
  while (index !== -1) {
    positions.push(index);
    index = text.indexOf(character, index + 1);
  }
  
  return positions;
}

// 使用正则表达式查找特定字符的位置
function findCharacterPositionsRegex(text, character) {
  var positions = [];
  var regex = new RegExp(character, 'g');
  var match;
  
  while ((match = regex.exec(text)) !== null) {
    positions.push(match.index);
  }
  
  return positions;
}

// 示例用法
var text = "Hello, world! How are you? This is a test.";
var character = "?";

var positions1 = findCharacterPositions(text, character);
console.log("Using string functions:", positions1);

var positions2 = findCharacterPositionsRegex(text, character);
console.log("Using regular expressions:", positions2);