Python 2.7 为什么赢了'；我的函数不能执行吗 我对Python比较新，我唯一的体验是C++。每当我在Python中定义一个函数时，我似乎都无法执行它。 这是我当前分配的代码，如果可能的话，我只想知道为什么我的代码不会执行 def birthexp(birthyear): product = birthyear**birthyear length = len(str(product)) onesCount = str(product).count("1") threeCount = str(product).count("3") fiveCount = str(product).count("5") sevenCount = str(product).count("7") nineCount = str(product).count("9") sumCount = onesCount+threeCount+fiveCount+sevenCount+nineCount oneRation = onesCount/float(length)*100 threeRatio = threeCount/float(length)*100 fiveRatio = fiveCount/float(length)*100 sevenRatio = sevenCount/float(length)*100 nineRatio = nineCount/float(length)*100 totalRatio = sumCount/float(length)*100 print(str(product) + ": product after multiplying the birth year to itself.") print(str(onesCount) + ": number of ones found at a rate of " +str(oneRation)+ "percent.") print(str(threeCount) + ": number of threes found at a rate of " +str(threeRatio)+ "percent") print(str(fiveCount) + ": number of fives found at a rate of " +str(fiveRatio)+ "percent") print(str(sevenCount) + ": number of sevens found at a rate of " +str(sevenRatio)+ "percent") print(str(nineCount) + ": number of nine found at a rate of " +str(nineRatio)+ "percent") print(str(sumCount) + ": total odd numbers found at a rate of " +str(totalRatio)+ "percent") birthyear(1990)

这一行有一个打字错误

totalRatio=sumCount/floar（length）*100

。您需要

float

而不是

floar

其次，使用

print

函数，几乎所有行中都有大量缺少的括号

如果希望函数返回值，应使用

return

而不是

print

：

return (str(product)
            + ": product after multiplying the birth year to itself.\n"
            + str(onesCount)
            + ": number of ones found at a rate of " + str(oneRation) + "percent.\n"
            + str(threeCount)
            + ": number of threes found at a rate of " + str(threeRatio) + "percent\n"
            + str(fiveCount)
            + ": number of fives found at a rate of " + str(fiveRatio) + "percent\n"
            + str(sevenCount)
            + ": number of sevens found at a rate of " + str(sevenRatio) + "percent\n"
            + str(nineCount)
            + ": number of nine found at a rate of " + str(nineRatio) + "percent\n"
            + str(sumCount)
            + ": total odd numbers found at a rate of " + str(totalRatio) + "percent\n")

---

这是该程序中的所有代码吗？是否在某处调用此函数？

totalRatio=sumCount/floar（length）*100

。有一个输入错误：

floar

应该是

float

。函数在python中不会运行，除非在

birthexp（1990）

之类的地方调用它们。将运行

birthyear

等于1990的代码。即使修复了输入错误并调用了函数，它仍然对我没有任何帮助。它所做的只是缩进到下一行，而不是调用函数I修复了缺少的括号和浮点输入错误。然而，它仍然忽略了这个功能。撇开这一点不谈，我的函数中的逻辑是否正确？在调用函数后，它会转到下一行，就好像它返回了一样nothing@gadde2223-嗯，它什么也不回，它只是打印information@gadde2223-它不应该返回任何内容，因为函数中没有

return

语句。您指出，输出太大，导致它无法显示。也许我只是想得太多了。但是谢谢。