Python:
```python
for i in range(1, 10):
for j in range(1, i + 1):
print(f"{j} * {i} = {j * i}\t", end="")
print()
```
VBA （Visual Basic for Applications）:
```vba
Sub 乘法表()
Dim i As Byte, j As Byte, s As Byte
For i = 1 To 9
For j = i To 9
s = j * i
Cells(j, i) = i & "x" & j & "=" & s
Next j
Next i
End Sub
```
C语言:
```c
include
int main() {
int i, j;
for (i = 1; i <= 9; i++) {
for (j = 1; j <= i; j++) {
printf("%d * %d = %-2d ", j, i, i * j);
}
printf("\n");
}
return 0;
}
```
Java:
```java
public class MultiplicationTable {
public static void main(String[] args) {
for (int i = 1; i <= 9; i++) {
for (int j = 1; j <= i; j++) {
System.out.print(j + "*" + i + "=" + (i * j) + "\t");
}
System.out.println();
}
}
}
```
JavaScript:
```javascript
for (let i = 1; i <= 9; i++) {
for (let j = 1; j <= i; j++) {
console.log(`${j} * ${i} = ${j * i}`, end="\t");
}
console.log();
}
```
这些代码示例展示了如何使用不同的编程语言来实现99乘法表。你可以根据自己的需求和熟悉程度选择合适的编程语言和实现方式。