一、python基础
1.安装python环境
2.安装pycharm
3.注释
# 单行注释
"""
多行注释
"""
4.print
5.python中变量不需要提前声明
6.if else
7.格式化代码:Code -> Reformat Code
8.循环:while、for
for 语法: for 变量 in 可迭代对象(包括字符串、列表、元组、字典、集合)
示例代码:
address = "北京"
for a in address:
print(a)
9.字符串格式化
①%
示例代码:
grade = "1"
classes = "高三%s班"%grade
print(classes)
②format
示例代码:
grade_2 = "2"
number = "2"
classes_2 = "高三{}班{}号".format(grade_2,number)
print(classes)
③f-string(python3.6以上才支持)
示例代码:
grade_3 = "3"
classes = f"高三{grade_3}班"
print(classes)
10.控制流:if else、while for