Python打印效率优化技巧

1. 使用字符串格式化代替字符串拼接：

# 慢速代码
name = "Alice"
age = 30
print("My name is " + name + " and I am " + str(age) + " years old")

# 快速代码
print("My name is {} and I am {} years old".format(name, age))

2. 使用列表推导式代替循环：

# 慢速代码
squares = []
for i in range(10):
    squares.append(i ** 2)
print(squares)

# 快速代码
squares = [i ** 2 for i in range(10)]
print(squares)

3. 使用生成器表达式代替列表推导式：

# 慢速代码
squares = [i ** 2 for i in range(10)]

# 快速代码
squares = (i ** 2 for i in range(10))

4. 尽量避免嵌套循环：

# 慢速代码
for i in range(10):
    for j in range(10):
        print(i, j)

# 快速代码
for i in range(10):
    print(i, j for j in range(10))

5. 使用适当的数据结构：

# 慢速代码
names = ["Alice", "Bob", "Charlie"]
ages = [30, 25, 35]
for i in range(len(names)):
    print("My name is {} and I am {} years old".format(names[i], ages[i]))

# 快速代码
people = {"Alice": 30, "Bob": 25, "Charlie": 35}
for name, age in people.items():
    print("My name is {} and I am {} years old".format(name, age))

这些技巧可以帮助提高Python代码的打印效率。