# RMB= USD / 6.78
# USD = RMB* 6.78
def tempConvert():
t = input("请输入数值:")
R = ["RMB","rmb"]
U = ["USD","usd"]
if t[0:3] in R:
temp = float(t[3:])/6.78
# print(temp)
temp = "{:.2f}".format(temp)
temp = "USD" + str(temp)
print("结果:",temp)
elif t[0:3] in U:
temp = float(t[3:])*6.78
temp = "{:.2f}".format(temp)
temp = "RMB" + str(temp)
print("结果:",temp)
else:
print("输入格式错误")
return False
return temp
tempConvert()