如何使用條件語句、python、pyscripter 將變量更改為與其他變量相等

Question

我想編碼：如果 cc 是負數，那么 cc 應該變成 0。cc 是一個變量。 我怎么做？ 插入的代碼只是我代碼的一部分。

if cc <0 :
    then cc == 0
    print("The skill you have inputted is negative, it will stored as 0")

elif dd <0 :
    then dd == 0
    print ("The skill you have inputted is negative, it will be stored as 0")

else :
    print ("Don't worry nothing has changed!")

現在正確了嗎？？？

if cc <0 or dd <0:
    cc == 0
    dd ==0
    print("The skill you have inputted is negative, it will stored as 0")

else :
    print ("Don't worry nothing has changed!")

if c==0 or d==0:
    print("The strength you inputted is 0. Your character dies.")

elif c<0 or d<0:
    print("The strength you have inputted is negative. Your character dies.")

else :
    print ("Don't worry nothing has changed!")

Answer 1

只需使用=將變量分配給新值：

if cc < 0:
    cc = 0
    print("The skill you have inputted is negative, it will stored as 0")

elif dd < 0:
    dd = 0
    print("The skill you have inputted is negative, it will be stored as 0")

else:
    print("Don't worry nothing has changed!")

請參閱下面的演示：

>>> cc = -1
>>> if cc < 0:
...     cc = 0
...
>>> cc
0
>>>

---

但是，您的代碼看起來也有邏輯錯誤。 如果cc大於零，則永遠不會檢查dd因為您使用了elif 。

也許你想要這樣的東西：

if cc < 0 or dd < 0:  # See if cc or dd is less than 0

    if cc < 0:  # See if cc is less than 0
        cc = 0  # Assign cc to 0
        print("The skill you have inputted is negative, it will stored as 0")

    if dd < 0:  # See if dd is less than 0
        dd = 0  # Assign dd to 0
        print("The skill you have inputted is negative, it will stored as 0")

else:  # If we get here, then neither cc nor dd was less than 0
    print("Don't worry nothing has changed!")

Answer 2

用

cc = max(0, cc)

並完全避免使用if語句。