n='world' print("hello"+n)
时间: 2024-05-27 09:14:27 浏览: 12
There is a syntax error in the code. The correct way to print the string "hello world" would be:
n = 'world'
print("hello", n)
or
n = 'world'
print("hello " + n)
Either of these will output "hello world".
相关问题
str_data = "helloworldhellopythonhelloc++hellojava"
这是一个字符串变量,其中包含了三个子字符串 "helloworld"、"hellopython" 和 "hellojava",它们之间用空格分隔。您可以通过字符串的 split() 方法将其拆分成一个字符串列表:
```
str_data = "helloworldhellopythonhelloc hellojava"
str_list = str_data.split()
print(str_list)
```
输出:
```
['helloworldhellopythonhelloc', 'hellojava']
```
您还可以使用正则表达式来匹配其中的子字符串,比如:
```
import re
str_data = "helloworldhellopythonhelloc hellojava"
str_list = re.findall(r'hello\w+', str_data)
print(str_list)
```
输出:
```
['helloworld', 'hellopython', 'hellojava']
```
这里使用了正则表达式 `hello\w+` 来匹配以 "hello" 开头,后面跟着任意字母或数字的子字符串。
print("Hello World!")x = 10y = 20print(x + y)
There is an error in this code as the print statement "print(x y)" is missing a comma between the variables x and y. Here's the corrected code:
```python
print("Hello World!")
x = 10
y = 20
print(x, y)
```
The output will be:
```
Hello World!
10 20
```
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