如何统一检查文本元素[重复]

Question

我有一个统一的简单场景，我有一个带输入字段的画布，我的代码很简单

using System.Collections;   
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class TextRecstriction : MonoBehaviour
{

    public Text text;

    public string a = "a";
    public string b = "a";
    public string c = "a";
    public string d = "a";
    public string e = "a";
    public string f = "a";
    public string g = "a";
    public string h = "a";
    public string i = "a";
    public string j = "a";
    public string k = "a";
    public string l = "a";
    public string m = "a";
    public string n = "a";
    public string o = "a";
    public string p = "a";
    public string q = "a";
    public string r = "a";
    public string s = "a";
    public string t = "a";
    public string u = "a";
    public string v = "a";
    public string w = "a";
    public string x = "a";
    public string y = "a";
    public string z = "a";
    

    // Update is called once per frame
    void Update()
    {
        
    }
}

我想添加 if 语句来检查文本元素中是否有任何字母我如何通过文本来获取文本中是否包含任何字符串

Answer 1

如果你使用 .Contains() 方法，它会返回一个布尔值，判断字符串是否包含给定的字母。

    string textOnCanvas
    
    void update(){

     if(textOnCanvas.Contains('a'))
     {
      //whatever you want to happen if it does contain the letter
     }

    }

此外，您可以创建一个包含所有字母的数组[]，并使用 for/foreach 循环检查每个字母。

public string alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ
 abcdefghijklmnopqrstuvwxyz"

 char[] alphabetArray = alphabet.ToCharArray();

 foreach(char character in alphabet)
 {
   if(textOnCanvas.Contains(character)
     {
      //whatever you want to happen if it does contain the letter
      //if you want the test to stop once a match has been found, you can add:
      break;//To take you out of the loop
     }
 }