def greet():
print("Hello")  # 報錯：SyntaxError: expected an indented block

def greet():
    print("Hello")  # 正確縮進

if x > 0  # 報錯：SyntaxError: expected ':'
    print("Positive")

if x > 0:
    print("Positive")

message = "This is a multi-line
string"  # 報錯：SyntaxError: EOL while scanning string literal

message = """This is a multi-line
string"""  # 使用三引號
message = "This is a multi-line\nstring"  # 使用換行符

data = {1, 2, 3}  # 報錯：SyntaxError: invalid syntax

data = {1: "one", 2: "two", 3: "three"}  # 字典
data = {1, 2, 3}  # 集合（Python 2.7+）

python -m py_compile script.py  # 檢查語法錯誤
python script.py  # 運行并查看具體錯誤

# 錯誤代碼
def calculate(a, b):
    return a + b
    print("Result:", result)  # 無法執(zhí)行

# 分段測試
def calculate(a, b):
    result = a + b
    print("Result:", result)  # 測試縮進
    return result

code = """
def greet():
    print("Hello")
greet()
"""
try:
    exec(code)
except SyntaxError as e:
    print(f"SyntaxError: {e.msg} at line {e.lineno}")

import ast

code = """
def greet():
    print("Hello")
"""

try:
    ast.parse(code)
    print("Code is syntactically correct")
except SyntaxError as e:
    print(f"SyntaxError: {e.msg} at line {e.lineno}")