Python '；中断'；正在创建不正确的循环内pylint（非循环内）错误

我试图制作一个计算器，并指定第一个数字，我认为我需要中断循环，但它只给了我一个错误（“中断”在循环中不正确）

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看起来缩进可能有问题，从a=

equationlist[i]

行开始的代码需要与try-and-catch处于相同的缩进级别，如下所示（这样做将使块成为

for

循环的一部分）

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错误很明显，您正在循环外添加

break

指令（如果/elif不被视为循环）。

def solve():
    global equation
    global n1
    equation = input("Enter Equation( Do not leave spaces nor =) ")
    equationlist = list(equation)
    length = len(equationlist)
    n1 = ''
    n2 = ''
    op = ''
    equals = ''
    for i in range(0,length):
        numbercheck = True
        try:
            int(equationlist[i])
        except ValueError:
            numbercheck = False
    a = equationlist[i]
    a = str(a)
    if numbercheck == True:
        n1 += a
    elif numbercheck==False:
        op = equationlist[i]
        solve2()
        break

def solve():
    global equation
    global n1
    equation = input("Enter Equation( Do not leave spaces nor =) ")
    equationlist = list(equation)
    length = len(equationlist)
    n1 = ''
    n2 = ''
    op = ''
    equals = ''
    for i in range(0,length):
        numbercheck = True
        try:
            int(equationlist[i])
        except ValueError:
            numbercheck = False
        a = equationlist[i]
        a = str(a)
        if numbercheck == True:
            n1 += a
        elif numbercheck==False:
            op = equationlist[i]
            solve2()
            break