Python：05打印字母联想英文周一到周日（字符串）

week=['Monday','Tuesday','Wendnesday','Thursday','Friday','Saturday','Sunday']
while True:
    myStr=input("请输入一个字符：")
    upMyStr=myStr.upper()
    for weeks in week:
        if upMyStr==weeks[0]:
            if weeks.startswith("M"):
                print('Monday星期一')
            elif weeks.startswith("W"):
                print('Wendnesday星期三')
            elif weeks.startswith("F"):
                print('Friday星期五')
            elif weeks.startswith("T") or weeks.startswith("S"):
                secondStr=input("请再输入一个字符：")
                newStr=myStr+secondStr
                print(newStr)
                for weekStr in week:
                    if weekStr.find(newStr,0,2)!=-1:
                        if newStr=="Tu":
                            print('Tuesday星期二')
                        elif newStr=="Th":
                            print('Thursday星期四')
                        elif newStr == "Sa":
                            print('Thursday星期六')
                        elif newStr == "Su":
                            print('Thursday星期日')
                        break
            break