Question

我试图在Visual Studio上用Python打印我的函数，它有很多＆＃34; if＆＃34;其中的陈述：

def correction(Diff):
    if 1 <= Diff <20 : 
        print "correction 1" # is correction necessary?
    elif 20 <= Diff < 49:
        print "correction 2" # Slight turn to right
    elif 50 <= Diff < 74:
        print "correction 3" # turn to right
    elif 75 <= Diff < 100:
        print "correction 4" # 'sharp' turn to right
    elif 100 <= Diff:
        print "correction 9" # STOP
    elif -20 <= Diff < 0:
        print "correction 5" # is correction necessary?
    elif -50 <= Diff < -20:
        print "correction 6" # Slight turn to left
    elif -75 <= Diff < -50:
        print "correction 7" # turn to left
    elif -100 < Diff < -75:
        print "correction 8" # 'sharp' turn to left
    elif Diff9 <= -100:
        print "correction 9" # STOP
    else:
        print "carry on"
return correction

print (correction)

在函数之前完全定义了Diff。但是，当我运行代码时，我会显示此消息代替print：

function correction at 0x073EECB0

我希望该函数能够运行并打印正确的语句。希望转移此代码以用于视频，因此任何可以最大限度地降低处理能力的建议和帮助都会很棒。

Answer 1

您的函数确实会返回对自身的引用。为了简单地运行函数correction，只需像这样调用它

def correction(Diff):
    # code here

correction(PARAMETER)

PARAMETER是您选择的值。该函数本身包含打印语句，因此您无需在该函数之外担心它。

打印correction将＆＃34;打印＆＃34;该函数，导致其在内存中的地址被显示。

这就是它的工作方式

def correction(Diff):
    if 1 <= Diff <20 : 
        print "correction 1" # is correction necessary?
    elif 20 <= Diff < 49:
        print "correction 2" # Slight turn to right
    elif 50 <= Diff < 74:
        print "correction 3" # turn to right
    elif 75 <= Diff < 100:
        print "correction 4" # 'sharp' turn to right
    elif 100 <= Diff:
        print "correction 9" # STOP
    elif -20 <= Diff < 0:
        print "correction 5" # is correction necessary?
    elif -50 <= Diff < -20:
        print "correction 6" # Slight turn to left
    elif -75 <= Diff < -50:
        print "correction 7" # turn to left
    elif -100 < Diff < -75:
        print "correction 8" # 'sharp' turn to left
    elif Diff9 <= -100:
        print "correction 9" # STOP
    else:
        print "carry on"

correction(Diff) # Pass any integer or integer variable here

删除了返回对函数本身的引用的return语句，并将print语句更改为correction()的简单调用。

打印包含if语句的函数，Python

1 个答案: