将echo中的{text}替换为另一个字符串

var echo = "Hello, {text}!";
var newText = "World";
var replacedString = echo.replace("{text}", newText);
console.log(replacedString); // Output: Hello, World!

from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello():
    echo = "Hello, {text}!"
    newText = "World"
    replacedString = echo.replace("{text}", newText)
    return replacedString

if __name__ == '__main__':
    app.run()

import org.junit.Test;
import static org.junit.Assert.assertEquals;

public class StringReplacementTest {
    
    @Test
    public void testStringReplacement() {
        String echo = "Hello, {text}!";
        String newText = "World";
        String replacedString = echo.replace("{text}", newText);
        assertEquals("Hello, World!", replacedString);
    }
}

UPDATE table_name
SET column_name = REPLACE(column_name, '{text}', 'newText')
WHERE condition;

echo="Hello, {text}!"
newText="World"
replacedString=$(echo $echo | sed "s/{text}/$newText/g")
echo $replacedString