打印出1到100 # x = 0 # while x <= 100: #     x = x + 1 #     print(x) # 输出1+2+3+....+100的运算 # x = 1 # y = 0 # while x <= 100: #     y = y + x #     x = x + 1 #     print(y) # print(3 != 2) # 输出1+3+5+7+9+...99的值 # x = 1 # y = 0 # while x <= 99: #     y += x #     x += 2 #     print(y) # 输出1、2、3、4、、、、、、100中的偶数 # x = 1 # while x <= 100: #     x += 1 #     if x % 2 == 0: #         print(x)