Use what it gives back · 使用它返回的值
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Python Basics · Python 基础 · Functions · 函数 →
English
Use what it gives back
double is written for you and returns a number. Call it with 21 and store the answer in answer.
return hands a value back to whoever called the function. That value is not printed — you catch it with =, exactly like any other result.
中文
使用它返回的值
double 已经写好了，它会返回一个数。用 21 调用它，把结果存进 answer。
return 把一个值交回给调用它的地方。这个值不会被打印 —— 你要用 = 接住它，就像接住任何其他结果一样。
double is written for you and returns · 返回值 a number. Call it with 21 and store the answer in answer. · double 已经写好了，它会返回一个数。用 21 调用它，把结果存进 answer。
Click Run to see the output here. · 点击“运行”查看此处输出。