对不同的变量多次使用replace()

text = "Hello, world! Hello, universe!"
new_text = text.replace("Hello", "Hi")
print(new_text)  # 输出: Hi, world! Hi, universe!

# 限定次数替换
new_text = text.replace("Hello", "Hi", 1)
print(new_text)  # 输出: Hi, world! Hello, universe!

# 使用正则表达式替换
import re
new_text = re.sub(r"Hello", "Hi", text)
print(new_text)  # 输出: Hi, world! Hi, universe!

let text = "Hello, world! Hello, universe!";
let newText = text.replace("Hello", "Hi");
console.log(newText);  // 输出: Hi, world! Hello, universe!

// 使用正则表达式替换
newText = text.replace(/Hello/g, "Hi");
console.log(newText);  // 输出: Hi, world! Hi, universe!

text = "apple orange banana apple"
text = text.replace("apple", "pear")
text = text.replace("orange", "grape")
text = text.replace("banana", "kiwi")
print(text)  # 预期输出: pear grape kiwi pear，但实际输出可能不正确

import re

text = "apple orange banana apple"
replacements = {
    "apple": "pear",
    "orange": "grape",
    "banana": "kiwi"
}
pattern = re.compile("|".join(re.escape(key) for key in replacements.keys()))
text = pattern.sub(lambda match: replacements[match.group(0)], text)
print(text)  # 输出: pear grape kiwi pear