String.compareTo()

String

compareTo() 描述 Compares two Strings, testing whether one comes before or after the other, or whether they're equal. The strings are compared character by character, using the ASCII values of the characters. That means, for example, that 'a' comes before 'b' but after 'A'. Numbers come before letters. 语法 string.compareTo(string2) 参数 string: a variable of type String string2: another variable of type String 返回值 a negative number: if string comes before string2 0: if string equals string2 a positive number: if string comes after string2 示例 - StringComparisonOperators 返回String 返回Arduino语法参考列表 更多建议和问题欢迎反馈至 YFRobot论坛