字典元素的”值“是运算符怎么将其参与运算

dic={"加":"+","减":"-","乘":"*","除":"/"}

不能直接用， 要转换

dic={"加":"+","减":"-","乘":"*","除":"/"}

a = 5
b = 3

for k,v in dic.items():
    fr = "{}{}{}".format(a,v,b)
    print("{}{}{}={}".format(a,k,b,eval(fr)))

把字符串放到 eval 里，如：

eval("1-2") 

望采纳，谢谢。