[5 min python] 內建函數：Template

import string
# 創建一個模板字符串
template = string.Template("Hello, ${name}! Your balance is $${balance}.")
# 定義替換的值
values = {"name": "Alice", "balance": 1000}
# 使用substitute方法替換占位符
result = template.substitute(values)
print(result)
# 輸出：Hello, Alice! Your balance is $1000.
# 使用safe_substitute方法替換占位符，如果找不到占位符，則保留它們
result2 = template.safe_substitute(values)
print(result2)
# 輸出：Hello, Alice! Your balance is $1000.
# 如果有未提供的值，safe_substitute 也會保留占位符
values2 = {"name": "Bob"}
result3 = template.safe_substitute(values2)
print(result3)
# 輸出：Hello, Bob! Your balance is $${balance}.

書籍推薦