#1. 使用while循环输出1 2 3 4 5 6 8 9 10 n = 1 while n <= 10: if n == 7: pass else: print(n) n = n + 1 #2. 求1 ~100所有数的和 n = 1 count = 0 while n <= 100: count = count + n n = n + 1 print(count) # 3. 输出 1~100 内的所有奇数 n = 1 while n < 100: if n % 2 != 0: print(n) else: pass n = n + 1 # 4. 输出1~100以内的所有偶数 n = 1 while n < 100 : if n % 2 == 0: print(n) else : pass n = n + 1 #5. 求1-2+3-4+5-6...99的所有数的和 n = 1 count = 0 while n <= 99: if n % 2 != 0: count = count + n else: count = count - n n = n + 1 print(count)
1.字符串表示使用单引号、双引号、三引号,不可以混搭
a1 = '张大磊' a2 = "张娃子" a3 = '''三娃子''' print(a1) print(a2) print(a3) #字符串加号用法,代表将字符串连接起来 print(a1+a2+a3) #字符串*好用法,代表这个字符串打印10此 print(a1*10) => 张娃子 三娃子 张大磊张娃子三娃子 张大磊张大磊张大磊张大磊张大磊张大磊张大磊张大磊张大磊张大磊
2. 数字(加、减、乘、除、余、熵、幂)
a1 = 10 a2 = 20 a3 = a1 + a2 a4 = a1 - a2 a5 = a1 * a2 a6 = a1 / a2 a7 = 39 % 8 a8 = 39 // 8 a9 = 2 ** 3 print(a3) print(a4) print(a5) print(a6) print(a7) print(a8) print(a9) =》 30 -10 200 0.5 7 4 8