Open carloscn opened 1 year ago
static int32_t to_lower(char *str)
{
int32_t ret = 0;
size_t len = 0;
UTILS_CHECK_PTR(str);
UTILS_CHECK_LEN(len = strlen(str));
do {
*str = utils_conv_lowercase(*str);
str ++;
} while (*str != '\0');
finish:
return ret;
}
fn to_lower(instr:&str) -> String
{
let mut out:String = String::new();
let mut e:u8;
for c in instr.as_bytes() {
e = utils::str::conv_lowercase(*c as u8);
out.push(e as char);
}
// as option:
// out.push_str(instr);
// out = instr.to_lowercase();
return out;
}
问题描述
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。
示例 1:
输入:s = "Hello" 输出:"hello" 示例 2:
输入:s = "here" 输出:"here" 示例 3:
输入:s = "LOVELY" 输出:"lovely"
提示:
1 <= s.length <= 100 s 由 ASCII 字符集中的可打印字符组成
来源:力扣(LeetCode) 链接:https://leetcode.cn/problems/to-lower-case