方法一:使用for循环
```python
for i in range(1, 10):
for j in range(1, i + 1):
print(f"{i} * {j} = {i * j}", end="\t")
print()
```
方法二:列表推导式
```python
print('\n'.join(['\t'.join([f"{i} * {j} = {i * j}" for j in range(1, i + 1)]) for i in range(1, 10)]))
```
方法三:字符串格式化
```python
for i in range(1, 10):
row = ''
for j in range(1, i + 1):
row += f"{j} * {i} = {i * j:<4}"
print(row)
```
方法四:一行代码实现
```python
print('\n'.join(['\t'.join([f"{i} * {j} = {i * j}" for j in range(1, i + 1)]) for i in range(1, 10)]))
```
这些方法都可以实现九九乘法表的打印,你可以根据自己的喜好选择合适的方法。