题目描述:
Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.
If the last word does not exist, return 0.
Note: A word is defined as a character sequence consists of non-space characters only.
For example,
Given s = "Hello World",
return 5.
在一个字符串中,统计最后一个单词的长度。
1. 需要清空末尾字符串的空白字符
2. 直接统计
实现代码:public class Solution {
public int LengthOfLastWord(string s) {
s = s.TrimEnd();
var len = 0;
for(var i = s.Length - 1;i >=0; i--){
if(s[i] == ' '){
return len;
}
len++;
}
return len;
}
}