0709. to Lower Case

709. To Lower Case #

题目 #

Given a string s, return the string after replacing every uppercase letter with the same lowercase letter.

Example 1:

Input: s = "Hello"
Output: "hello"

Example 2:

Input: s = "here"
Output: "here"

Example 3:

Input: s = "LOVELY"
Output: "lovely"

Constraints:

  • 1 <= s.length <= 100
  • s consists of printable ASCII characters.

题目大意 #

给你一个字符串 s ,将该字符串中的大写字母转换成相同的小写字母,返回新的字符串。

解题思路 #

  • 简单题,将字符串中的大写字母转换成小写字母。

代码 #

func toLowerCase(s string) string {
    runes := [] rune(s)
    diff := 'a' - 'A'
    for i := 0; i < len(s); i++ {
        if runes[i] >= 'A' && runes[i] <= 'Z' {
            runes[i] += diff
        }
    }
    return string(runes)
}

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Calendar Jun 16, 2021
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