| 1. | Returns a character expression in reverse order 按相反顺序返回字符表达式。 |
| 2. | Expression from which characters are returned 表达式,从该表达式返回字符。 |
| 3. | Returns the number of characters in a character expression 返回字符表达式中的字符数。 |
| 4. | Starting position of the characters to return 要返回字符的开始位置。 |
| 5. | Returns a part of a character expression 返回字符表达式的一部分。 |
| 6. | Function returns the characters while the 函数返回字符,而 |
| 7. | Returns the unicode code value of the leftmost character of a character expression 返回字符表达式最左端字符的unicode代码值。 |
| 8. | Returns the index position of a character or string , starting from the end of the string you are examining 返回字符或字符串的索引位置,索引位置从正在检查的字符串的结尾开始。 |
| 9. | Returns the index position of a character or string , starting from the beginning of the string you are examining 返回字符或字符串的索引位置,索引位置从正在检查的字符串的开头开始。返回整数值。 |