擅长:python、mysql、java
<p>函数addInterest()返回值1050,但不应用amount变量的更改,因为您没有作为引用变量传递(我认为python不支持引用变量)。必须将返回值存储到新变量中:</p>
<pre><code>def addInterest(balance, rate):
newBalance = balance * (1 + rate)
return newBalance
def test():
amount = 1000
rate = 0.05
# STORE RETURNED VALUE
result = addInterest(amount, rate)
# PRINT RETURNED VALUE
print(result)
test()
</code></pre>