add issue_templates;modify test_all.py ,del try-except

[Suvie277]

No description provided.

[codecov-io]

Codecov Report

Merging #179 into master will decrease coverage by 10.69%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #179      +/-   ##
==========================================
- Coverage   95.95%   85.26%   -10.7%     
==========================================
  Files          44       44              
  Lines        1608     1608              
  Branches      157      157              
==========================================
- Hits         1543     1371     -172     
- Misses         48      223     +175     
+ Partials       17       14       -3

Impacted Files	Coverage Δ
...-python-sdk-core/aliyunsdkcore/profile/__init__.py	0% <0%> (-100%)	⬇️
...-sdk-core/aliyunsdkcore/profile/region_provider.py	0% <0%> (-100%)	⬇️
...k-core/aliyunsdkcore/retry/retry_policy_context.py	37.5% <0%> (-62.5%)	⬇️
...on-sdk-core/aliyunsdkcore/retry/retry_condition.py	51.32% <0%> (-44.25%)	⬇️
aliyun-python-sdk-core/aliyunsdkcore/client.py	45.36% <0%> (-40.73%)	⬇️
...-python-sdk-core/aliyunsdkcore/utils/validation.py	66.66% <0%> (-33.34%)	⬇️
...ython-sdk-core/aliyunsdkcore/http/http_response.py	69.69% <0%> (-30.31%)	⬇️
...n-sdk-core/aliyunsdkcore/retry/backoff_strategy.py	71.05% <0%> (-23.69%)	⬇️
...ython-sdk-core/aliyunsdkcore/retry/retry_policy.py	85.71% <0%> (-14.29%)	⬇️
...liyunsdkcore/endpoint/chained_endpoint_resolver.py	86.48% <0%> (-13.52%)	⬇️
... and 1 more

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[JacksonTian]

为什么缩进不一样。