工资系统--练习文件的操作(增改查)

Posted 2020-10-10 七度王爵

‘‘‘
1、使用的是字典保存
2、没有进行异常捕获
3、必须创建info文件，文件内容格式为：
{‘name‘: ‘xiaoli‘, ‘salary‘: 9990}
{‘name‘: ‘xiaowang‘, ‘salary‘: 8000}
‘‘‘
def memu():
    print("1. 查询员工工资")
    print("2. 修改员工工资")
    print("3. 增加新员工记录")
    print("4. 退出")

def find_wages(_name):
    with open("info","r",encoding="utf-8") as f:
        flag = 0
        for line in f:
            if line.strip() == "":
                continue
            line = eval(line)
            if line["name"] == _name:
                print("\033[31;1m %s的工资是%d \033[0m"%(line["name"],line["salary"]) + ‘\n‘)
                flag = 1
        if flag == 0:
            print("\033[36;1m 员工中没有%s \033[0m"%_name)

def modify_wages(_name):
    list = []
    with open("info","r",encoding="utf-8") as f:
        for line in f:
            flag = 0
            if line.strip() == "":
                continue
            line = eval(line)
            if line["name"] == _name:
                salary = input("请输入修改后的工资 >>>")
                if salary.isdigit():
                    salary = int(salary)
                else:
                    print("\033[36;1m 输入错误 \033[0m")
                line["salary"] = salary
                print("\033[32;1m %s修改后的工资是%d \033[0m"%(line["name"],line["salary"]) + ‘\n‘)
            else:
                if flag == 0:
                    print("\033[36;1m 员工中没有%s \033[0m"%_name)
                    flag = 1
            list.append(line)
    with open("info","w",encoding="utf-8") as f1:
        for temp in list:
            f1.write(str(temp) + ‘\n‘)

def add_wages():
    dict = {}
    name = input("请输入你要新增的员工姓名 >>>")
    salary = input("请输入新增员工的工资 >>>")
    if salary.isdigit():
        salary = int(salary)
    else:
        print("\033[36;1m 输入错误 \033[0m")
    dict["name"] = name
    dict["salary"] = salary
    print("\033[35;1m 新增员工%s的工资是%d \033[0m" % (dict["name"], dict["salary"]) + ‘\n‘)
    with open("info","a",encoding="utf-8") as f:
        f.write(str(dict) + ‘\n‘)

while True:
    memu()
    choose = input("请输入你要进行的操作 >>>")
    if choose.isdigit():
        choose = int(choose)
    else:
        print("\033[36;1m 输入错误 \033[0m")
        continue
    if choose == 1:
        name = input("请输入要查询的员工姓名 >>>")
        find_wages(name)
    elif choose == 2:
        name = input("请输入要修改的员工姓名 >>>")
        modify_wages(name)
    elif choose == 3:
        add_wages()
    elif choose == 4:
        exit()
    else:
        print("\033[36;1m 输入错误 \033[0m")