55 lines
1.1 KiB
Python
55 lines
1.1 KiB
Python
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# type()
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# String_type=type("黑马");
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# print(String_type);
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# print("黑马")
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# print(type("黑马"))
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# 数据类型转换
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# print(int(12.23))
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# print(float(12))
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# print(str("黑马"))
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# 运算符 ** 指数 //取整数
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# print(13//2)#13除2取整
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# print(2**5)#2的5次幂
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# num = 2;
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# num += 1;
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# print(num)
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# 字符串
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# 使用转义字符\取消引号效用
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# print("heima\" ")
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# 字符串拼接 字符串格式化
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# a = 12
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# b = 33
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# message = "第%s期，平均工资%s元" % (a, b)
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# print(message)
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# 精度控制
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# a=11.2
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# b=22
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# c="%5.1f期，%3d元"%(a,b)
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# print(c)
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# 快速格式化
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# name="黑马"
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# age=22
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# price=19.9
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# message=f"我叫{name}，我今年{age}岁，我的股价{price}元"
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# print(message)
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# 表达式格式化
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# print("1*1的结果是%d" % 1 * 1)
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# print(f"1*2的结果是{1 * 2}")
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# print("字符串的数据类型为%s " % type("字符串"))
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# 数据输入
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# print("请告诉我你是谁？")
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# name=input()
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# print("我知道了你是谁："+name)
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# name1 = input(
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# "请告诉我银行卡密码\n"
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# )
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# print("我知道你的银行卡密码是：" + name1)
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