formula = input("Enter a formula: ")
parenthesis = (formula.count("(,)"))
if parenthesis >= 1 :
print ("You have enteread a complete formula.")
else:
print ("You have incomplete set of parenthesis")
formula = input("Enter a formula: ")
open_brackets = formula.count("(")
close_brackets = formula.count(")")
if open_brackets == close_brackets:
print("You have entered a complete formula.")
else:
print("You have incomplete set of parenthesis")
也许我的想法过于简单化了,但这里有一个简单的方法:
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