一、案例1:最基础的字符串替换
text = "Hello World"
new_text = text.replace("World", "Python")
print(text) # 输出: Hello World
print(new_text) # 输出: Hello Python
二、案例2:控制替换次数
text = "apple apple apple"
new_text = text.replace("apple", "banana", 2)
print(new_text)
# 输出:banana banana apple
三、案例3:多层替换
text = "the sky is blue, the sea is also blue"
new_text = text.replace("blue", "green").replace("sea", "ocean")
print(new_text)
# 输出:the sky is green, the ocean is also green