标签：序列 pytho erro bsp python name RoCE 子序列 with
1.加+，减-，乘*，除/
例如：
a = 1 b = 2 c = a + b print(c)
运算结果：
3
Process finished with exit code 0
a = 1 b = 2 c = a - b print(c)
运算结果：
-1
Process finished with exit code 0
a = 1 b = 2 c = a * b print(c)
运算结果：
2
Process finished with exit code 0
a = 1 b = 2 c = a / b print(c)
运算结果：
0.5
Process finished with exit code 0
2.特殊的 幂 **， 取余%，//取商
例如：
a = 1 b = 2 c = a ** b print(c)
运算结果：
1
Process finished with exit code 0
a = 9 b = 2 c = a % b print(c)
运算结果：
1
Process finished with exit code 0
a = 9 b = 2 c = a // b print(c)
运算结果：
4
Process finished with exit code 0
3.in 和 not in 表示判断
判断某个东西是否在**里
例如：
in
name = ‘abd‘ #‘abd‘ 字符串 ； ‘a‘ 字符 if ‘a‘ in name: # 如果a在name里 print(‘ok‘) else: print(‘error‘)
运行结果：
ok
Process finished with exit code 0
ps:
子字符串：
name = ‘abd‘ #‘abd‘ 字符串 ； ‘a‘ 字符 #‘bd‘ 子字符串或者叫子序列 if ‘ad‘ in name: # 如果a在name里 print(‘ok‘) else: print(‘error‘)
运行结果：
error
Process finished with exit code 0
not in:
name = ‘abd‘ if ‘a‘ not in name: print(‘ok‘) else: print(‘error‘)
运行结果：
error
Process finished with exit code 0
标签：序列 pytho erro bsp python name RoCE 子序列 with
原文地址：https://www.cnblogs.com/liujinjing521/p/11020423.html
