asterisk picture character

例句：

1. 1.The asterisk character is used to indicate a pause in a text.
   星号字符用于在文本中表示暂停。
2. 2.In mathematics, the asterisk character is often used to represent the sum of two numbers.
   在数学中，星号字符通常用来表示两个数字的和。
3. 3. The asterisk character is also used to indicate emphasis or importance.
   星号字符还用于表示强调或重要性。