Python 操作記錄--for 迴圈

Python for-loop 基本操作

Range

for n in range(100):
    print(n)

list

# 一般
n_lists = [1,2,3,4,5,6]
for n in n_lists:
    print(n)

# 含index
for i, n in enumerate(n_lists):
    print(f"index:{i}, value:{n}")

dict

# 一般
n_dicts = {"a":1, "b":2, "c":3, "d":4}
for n in n_dicts:
    print(n)

# keys
for key in n_dicts.keys():
    print(key)

# values
for value in n_dicts.values():
    print(value)

# items
for key, value in n_dicts.items():
    print(f"{key},{value}")