520.Detect Capital
===

###### tags: `Easy`,`String`

[520. Detect Capital](https://leetcode.com/problems/detect-capital/)

### 題目描述

We define the usage of capitals in a word to be right when one of the following cases holds:

* All letters in this word are capitals, like `"USA"`.
* All letters in this word are not capitals, like `"leetcode"`.
* Only the first letter in this word is capital, like `"Google"`.

Given a string `word`, return `true` if the usage of capitals in it is right.

### 範例

**Example 1:**

Input: word = "USA"
Output: true

**Example 2:**

Input: word = "FlaG"
Output: false

**Constraints**:

* 1 <= `word.length` <= 100
* `word` consists of lowercase and uppercase English letters.

### 解答

class Solution:
    def detectCapitalUse(self, word: str) -> bool:
        return word.isupper() or word.islower() or word.istitle()

> [name=Kobe][time=Jan 2, 2023]

### Reference

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