520. 检测大写字母

https://leetcode-cn.com/problems/detect-capital/

Java

/*
 * @Author: Goog Tech
 * @Date: 2020-07-24 18:35:09
 * @Description: https://leetcode-cn.com/problems/detect-capital/
 * @FilePath: \leetcode-googtech\#520. Detect Capital\Solution.java
 */ 
class Solution {
    public boolean detectCapitalUse(String word) {
        char[] ch = word.toCharArray();
        int upper = 0,lower = 0;
        // 通过比较ASCII的大小来统计字符串中大小写字符的所占的个数
        for(int i = 0;i < ch.length;i++) { 
            if(ch[i]>='a') lower++; else upper++;
        }
        // GOOGLE || google || Google
        return upper==ch.alength || lower==ch.length ||  (upper==1 && ch[0]<'a');
    }
}

Python

'''
@Author: Goog Tech
@Date: 2020-07-24 18:18:31
@Description: https://leetcode-cn.com/problems/detect-capital/
@FilePath: \leetcode-googtech\#520. Detect Capital\Solution.py
'''
class Solution(object):
    def detectCapitalUse(self, word):
        """
        :type word: str
        :rtype: bool
        """
        # istitle():检测字符串中所有的单词拼写首字母是否为大写
        # return word.islower() or word.isupper() or word.istitle()

        lower = upper = 0
        strLength = len(word)
        # 通过比较ASCII的大小来统计字符串中大小写字符的个数
        for i in range(0,strLength):
            if word[i] >= 'a': 
                lower = lower+1
            else: 
                upper = upper+1
        # google or GOOGLE or Google
        return lower == strLength or upper == strLength or (upper==1 and word[0]<'a')

# Test
print(Solution().detectCapitalUse("Google"))